diff --git a/app/Entities/Controllers/BookApiController.php b/app/Entities/Controllers/BookApiController.php
index cb67184a0..41ff11dde 100644
--- a/app/Entities/Controllers/BookApiController.php
+++ b/app/Entities/Controllers/BookApiController.php
@@ -14,11 +14,9 @@ use Illuminate\Validation\ValidationException;
 
 class BookApiController extends ApiController
 {
-    protected BookRepo $bookRepo;
-
-    public function __construct(BookRepo $bookRepo)
-    {
-        $this->bookRepo = $bookRepo;
+    public function __construct(
+        protected BookRepo $bookRepo
+    ) {
     }
 
     /**
@@ -58,7 +56,9 @@ class BookApiController extends ApiController
      */
     public function read(string $id)
     {
-        $book = Book::visible()->with(['tags', 'cover', 'createdBy', 'updatedBy', 'ownedBy'])->findOrFail($id);
+        $book = Book::visible()
+            ->with(['tags', 'cover', 'createdBy', 'updatedBy', 'ownedBy'])
+            ->findOrFail($id);
 
         $contents = (new BookContents($book))->getTree(true, false)->all();
         $contentsApiData = (new ApiEntityListFormatter($contents))
@@ -116,12 +116,14 @@ class BookApiController extends ApiController
                 'description' => ['string', 'max:1000'],
                 'tags'        => ['array'],
                 'image'       => array_merge(['nullable'], $this->getImageValidationRules()),
+                'default_template_id' => ['nullable', 'integer'],
             ],
             'update' => [
                 'name'        => ['string', 'min:1', 'max:255'],
                 'description' => ['string', 'max:1000'],
                 'tags'        => ['array'],
                 'image'       => array_merge(['nullable'], $this->getImageValidationRules()),
+                'default_template_id' => ['nullable', 'integer'],
             ],
         ];
     }
diff --git a/app/Entities/Controllers/BookController.php b/app/Entities/Controllers/BookController.php
index 55d28c684..faa578893 100644
--- a/app/Entities/Controllers/BookController.php
+++ b/app/Entities/Controllers/BookController.php
@@ -24,15 +24,11 @@ use Throwable;
 
 class BookController extends Controller
 {
-    protected BookRepo $bookRepo;
-    protected ShelfContext $shelfContext;
-    protected ReferenceFetcher $referenceFetcher;
-
-    public function __construct(ShelfContext $entityContextManager, BookRepo $bookRepo, ReferenceFetcher $referenceFetcher)
-    {
-        $this->bookRepo = $bookRepo;
-        $this->shelfContext = $entityContextManager;
-        $this->referenceFetcher = $referenceFetcher;
+    public function __construct(
+        protected ShelfContext $shelfContext,
+        protected BookRepo $bookRepo,
+        protected ReferenceFetcher $referenceFetcher
+    ) {
     }
 
     /**
@@ -96,10 +92,11 @@ class BookController extends Controller
     {
         $this->checkPermission('book-create-all');
         $validated = $this->validate($request, [
-            'name'        => ['required', 'string', 'max:255'],
-            'description' => ['string', 'max:1000'],
-            'image'       => array_merge(['nullable'], $this->getImageValidationRules()),
-            'tags'        => ['array'],
+            'name'                => ['required', 'string', 'max:255'],
+            'description'         => ['string', 'max:1000'],
+            'image'               => array_merge(['nullable'], $this->getImageValidationRules()),
+            'tags'                => ['array'],
+            'default_template_id' => ['nullable', 'integer'],
         ]);
 
         $bookshelf = null;
@@ -170,10 +167,11 @@ class BookController extends Controller
         $this->checkOwnablePermission('book-update', $book);
 
         $validated = $this->validate($request, [
-            'name'        => ['required', 'string', 'max:255'],
-            'description' => ['string', 'max:1000'],
-            'image'       => array_merge(['nullable'], $this->getImageValidationRules()),
-            'tags'        => ['array'],
+            'name'                => ['required', 'string', 'max:255'],
+            'description'         => ['string', 'max:1000'],
+            'image'               => array_merge(['nullable'], $this->getImageValidationRules()),
+            'tags'                => ['array'],
+            'default_template_id' => ['nullable', 'integer'],
         ]);
 
         if ($request->has('image_reset')) {
diff --git a/app/Entities/Controllers/PageController.php b/app/Entities/Controllers/PageController.php
index 4d8c7e809..0a3e76daa 100644
--- a/app/Entities/Controllers/PageController.php
+++ b/app/Entities/Controllers/PageController.php
@@ -5,6 +5,7 @@ namespace BookStack\Entities\Controllers;
 use BookStack\Activity\Models\View;
 use BookStack\Activity\Tools\CommentTree;
 use BookStack\Activity\Tools\UserEntityWatchOptions;
+use BookStack\Entities\Models\Book;
 use BookStack\Entities\Models\Page;
 use BookStack\Entities\Repos\PageRepo;
 use BookStack\Entities\Tools\BookContents;
@@ -71,7 +72,6 @@ class PageController extends Controller
         $page = $this->pageRepo->getNewDraftPage($parent);
         $this->pageRepo->publishDraft($page, [
             'name' => $request->get('name'),
-            'html' => '',
         ]);
 
         return redirect($page->getUrl('/edit'));
@@ -259,11 +259,13 @@ class PageController extends Controller
         $page = $this->pageRepo->getBySlug($bookSlug, $pageSlug);
         $this->checkOwnablePermission('page-delete', $page);
         $this->setPageTitle(trans('entities.pages_delete_named', ['pageName' => $page->getShortName()]));
+        $usedAsTemplate = Book::query()->where('default_template_id', '=', $page->id)->count() > 0;
 
         return view('pages.delete', [
             'book'    => $page->book,
             'page'    => $page,
             'current' => $page,
+            'usedAsTemplate' => $usedAsTemplate,
         ]);
     }
 
@@ -277,11 +279,13 @@ class PageController extends Controller
         $page = $this->pageRepo->getById($pageId);
         $this->checkOwnablePermission('page-update', $page);
         $this->setPageTitle(trans('entities.pages_delete_draft_named', ['pageName' => $page->getShortName()]));
+        $usedAsTemplate = Book::query()->where('default_template_id', '=', $page->id)->count() > 0;
 
         return view('pages.delete', [
             'book'    => $page->book,
             'page'    => $page,
             'current' => $page,
+            'usedAsTemplate' => $usedAsTemplate,
         ]);
     }
 
diff --git a/app/Entities/Models/Book.php b/app/Entities/Models/Book.php
index f54a0bf2d..ee9a7f447 100644
--- a/app/Entities/Models/Book.php
+++ b/app/Entities/Models/Book.php
@@ -15,11 +15,13 @@ use Illuminate\Support\Collection;
  *
  * @property string                                   $description
  * @property int                                      $image_id
+ * @property ?int                                     $default_template_id
  * @property Image|null                               $cover
  * @property \Illuminate\Database\Eloquent\Collection $chapters
  * @property \Illuminate\Database\Eloquent\Collection $pages
  * @property \Illuminate\Database\Eloquent\Collection $directPages
  * @property \Illuminate\Database\Eloquent\Collection $shelves
+ * @property ?Page                                    $defaultTemplate
  */
 class Book extends Entity implements HasCoverImage
 {
@@ -71,6 +73,14 @@ class Book extends Entity implements HasCoverImage
         return 'cover_book';
     }
 
+    /**
+     * Get the Page that is used as default template for newly created pages within this Book.
+     */
+    public function defaultTemplate(): BelongsTo
+    {
+        return $this->belongsTo(Page::class, 'default_template_id');
+    }
+
     /**
      * Get all pages within this book.
      */
diff --git a/app/Entities/Repos/BookRepo.php b/app/Entities/Repos/BookRepo.php
index 737caa70b..03e1118b1 100644
--- a/app/Entities/Repos/BookRepo.php
+++ b/app/Entities/Repos/BookRepo.php
@@ -5,6 +5,7 @@ namespace BookStack\Entities\Repos;
 use BookStack\Activity\ActivityType;
 use BookStack\Activity\TagRepo;
 use BookStack\Entities\Models\Book;
+use BookStack\Entities\Models\Page;
 use BookStack\Entities\Tools\TrashCan;
 use BookStack\Exceptions\ImageUploadException;
 use BookStack\Exceptions\NotFoundException;
@@ -17,18 +18,11 @@ use Illuminate\Support\Collection;
 
 class BookRepo
 {
-    protected $baseRepo;
-    protected $tagRepo;
-    protected $imageRepo;
-
-    /**
-     * BookRepo constructor.
-     */
-    public function __construct(BaseRepo $baseRepo, TagRepo $tagRepo, ImageRepo $imageRepo)
-    {
-        $this->baseRepo = $baseRepo;
-        $this->tagRepo = $tagRepo;
-        $this->imageRepo = $imageRepo;
+    public function __construct(
+        protected BaseRepo $baseRepo,
+        protected TagRepo $tagRepo,
+        protected ImageRepo $imageRepo
+    ) {
     }
 
     /**
@@ -92,6 +86,7 @@ class BookRepo
         $book = new Book();
         $this->baseRepo->create($book, $input);
         $this->baseRepo->updateCoverImage($book, $input['image'] ?? null);
+        $this->updateBookDefaultTemplate($book, intval($input['default_template_id'] ?? null));
         Activity::add(ActivityType::BOOK_CREATE, $book);
 
         return $book;
@@ -104,6 +99,10 @@ class BookRepo
     {
         $this->baseRepo->update($book, $input);
 
+        if (array_key_exists('default_template_id', $input)) {
+            $this->updateBookDefaultTemplate($book, intval($input['default_template_id']));
+        }
+
         if (array_key_exists('image', $input)) {
             $this->baseRepo->updateCoverImage($book, $input['image'], $input['image'] === null);
         }
@@ -113,6 +112,33 @@ class BookRepo
         return $book;
     }
 
+    /**
+     * Update the default page template used for this book.
+     * Checks that, if changing, the provided value is a valid template and the user
+     * has visibility of the provided page template id.
+     */
+    protected function updateBookDefaultTemplate(Book $book, int $templateId): void
+    {
+        $changing = $templateId !== intval($book->default_template_id);
+        if (!$changing) {
+            return;
+        }
+
+        if ($templateId === 0) {
+            $book->default_template_id = null;
+            $book->save();
+            return;
+        }
+
+        $templateExists = Page::query()->visible()
+            ->where('template', '=', true)
+            ->where('id', '=', $templateId)
+            ->exists();
+
+        $book->default_template_id = $templateExists ? $templateId : null;
+        $book->save();
+    }
+
     /**
      * Update the given book's cover image, or clear it.
      *
diff --git a/app/Entities/Repos/PageRepo.php b/app/Entities/Repos/PageRepo.php
index dbd4a47d2..9a183469b 100644
--- a/app/Entities/Repos/PageRepo.php
+++ b/app/Entities/Repos/PageRepo.php
@@ -136,6 +136,14 @@ class PageRepo
             $page->book_id = $parent->id;
         }
 
+        $defaultTemplate = $page->book->defaultTemplate;
+        if ($defaultTemplate && userCan('view', $defaultTemplate)) {
+            $page->forceFill([
+                'html'  => $defaultTemplate->html,
+                'markdown' => $defaultTemplate->markdown,
+            ]);
+        }
+
         $page->save();
         $page->refresh()->rebuildPermissions();
 
diff --git a/app/Entities/Tools/TrashCan.php b/app/Entities/Tools/TrashCan.php
index 08276230c..b25103985 100644
--- a/app/Entities/Tools/TrashCan.php
+++ b/app/Entities/Tools/TrashCan.php
@@ -202,6 +202,10 @@ class TrashCan
             $attachmentService->deleteFile($attachment);
         }
 
+        // Remove book template usages
+        Book::query()->where('default_template_id', '=', $page->id)
+            ->update(['default_template_id' => null]);
+
         $page->forceDelete();
 
         return 1;
diff --git a/app/Search/SearchController.php b/app/Search/SearchController.php
index 09a67f2b5..6cf12a579 100644
--- a/app/Search/SearchController.php
+++ b/app/Search/SearchController.php
@@ -2,6 +2,7 @@
 
 namespace BookStack\Search;
 
+use BookStack\Entities\Models\Page;
 use BookStack\Entities\Queries\Popular;
 use BookStack\Entities\Tools\SiblingFetcher;
 use BookStack\Http\Controller;
@@ -82,6 +83,32 @@ class SearchController extends Controller
         return view('search.parts.entity-selector-list', ['entities' => $entities, 'permission' => $permission]);
     }
 
+    /**
+     * Search for a list of templates to choose from.
+     */
+    public function templatesForSelector(Request $request)
+    {
+        $searchTerm = $request->get('term', false);
+
+        if ($searchTerm !== false) {
+            $searchOptions = SearchOptions::fromString($searchTerm);
+            $searchOptions->setFilter('is_template');
+            $entities = $this->searchRunner->searchEntities($searchOptions, 'page', 1, 20)['results'];
+        } else {
+            $entities = Page::visible()
+                ->where('template', '=', true)
+                ->where('draft', '=', false)
+                ->orderBy('updated_at', 'desc')
+                ->take(20)
+                ->get(Page::$listAttributes);
+        }
+
+        return view('search.parts.entity-selector-list', [
+            'entities' => $entities,
+            'permission' => 'view'
+        ]);
+    }
+
     /**
      * Search for a list of entities and return a partial HTML response of matching entities
      * to be used as a result preview suggestion list for global system searches.
diff --git a/app/Search/SearchOptions.php b/app/Search/SearchOptions.php
index d38fc8d57..fffa03db0 100644
--- a/app/Search/SearchOptions.php
+++ b/app/Search/SearchOptions.php
@@ -170,6 +170,14 @@ class SearchOptions
         return $parsed;
     }
 
+    /**
+     * Set the value of a specific filter in the search options.
+     */
+    public function setFilter(string $filterName, string $filterValue = ''): void
+    {
+        $this->filters[$filterName] = $filterValue;
+    }
+
     /**
      * Encode this instance to a search string.
      */
diff --git a/app/Search/SearchRunner.php b/app/Search/SearchRunner.php
index fc36cb816..aac9d1000 100644
--- a/app/Search/SearchRunner.php
+++ b/app/Search/SearchRunner.php
@@ -58,7 +58,7 @@ class SearchRunner
         $entityTypesToSearch = $entityTypes;
 
         if ($entityType !== 'all') {
-            $entityTypesToSearch = $entityType;
+            $entityTypesToSearch = [$entityType];
         } elseif (isset($searchOpts->filters['type'])) {
             $entityTypesToSearch = explode('|', $searchOpts->filters['type']);
         }
@@ -469,6 +469,13 @@ class SearchRunner
         });
     }
 
+    protected function filterIsTemplate(EloquentBuilder $query, Entity $model, $input)
+    {
+        if ($model instanceof Page) {
+            $query->where('template', '=', true);
+        }
+    }
+
     protected function filterSortBy(EloquentBuilder $query, Entity $model, $input)
     {
         $functionName = Str::camel('sort_by_' . $input);
diff --git a/database/migrations/2023_12_02_104541_add_default_template_to_books.php b/database/migrations/2023_12_02_104541_add_default_template_to_books.php
new file mode 100644
index 000000000..c23bebc2e
--- /dev/null
+++ b/database/migrations/2023_12_02_104541_add_default_template_to_books.php
@@ -0,0 +1,32 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class AddDefaultTemplateToBooks extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('books', function (Blueprint $table) {
+            $table->integer('default_template_id')->nullable()->default(null);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('books', function (Blueprint $table) {
+            $table->dropColumn('default_template_id');
+        });
+    }
+}
diff --git a/dev/api/requests/books-create.json b/dev/api/requests/books-create.json
index 4a6626619..2a38dba83 100644
--- a/dev/api/requests/books-create.json
+++ b/dev/api/requests/books-create.json
@@ -1,4 +1,9 @@
 {
   "name": "My own book",
-  "description": "This is my own little book"
+  "description": "This is my own little book",
+  "default_template_id": 12,
+  "tags": [
+    {"name": "Category", "value": "Top Content"},
+    {"name": "Rating", "value": "Highest"}
+  ]
 }
\ No newline at end of file
diff --git a/dev/api/requests/books-update.json b/dev/api/requests/books-update.json
index fc67d5fcc..c026b7b49 100644
--- a/dev/api/requests/books-update.json
+++ b/dev/api/requests/books-update.json
@@ -1,4 +1,8 @@
 {
   "name": "My updated book",
-  "description": "This is my book with updated details"
+  "description": "This is my book with updated details",
+  "default_template_id": 12,
+  "tags": [
+    {"name": "Subject", "value": "Updates"}
+  ]
 }
\ No newline at end of file
diff --git a/dev/api/responses/books-create.json b/dev/api/responses/books-create.json
index 12a3e9e9f..773879125 100644
--- a/dev/api/responses/books-create.json
+++ b/dev/api/responses/books-create.json
@@ -6,6 +6,7 @@
   "created_by": 1,
   "updated_by": 1,
   "owned_by": 1,
+  "default_template_id": 12,
   "updated_at": "2020-01-12T14:05:11.000000Z",
   "created_at": "2020-01-12T14:05:11.000000Z"
 }
\ No newline at end of file
diff --git a/dev/api/responses/books-read.json b/dev/api/responses/books-read.json
index 3744445d0..21e1829b8 100644
--- a/dev/api/responses/books-read.json
+++ b/dev/api/responses/books-read.json
@@ -20,6 +20,7 @@
     "name": "Admin",
     "slug": "admin"
   },
+  "default_template_id": null,
   "contents": [
     {
       "id": 50,
diff --git a/dev/api/responses/books-update.json b/dev/api/responses/books-update.json
index 7d3d6735e..f69677c4a 100644
--- a/dev/api/responses/books-update.json
+++ b/dev/api/responses/books-update.json
@@ -1,11 +1,12 @@
 {
   "id": 16,
-  "name": "My own book",
-  "slug": "my-own-book",
-  "description": "This is my own little book - updated",
+  "name": "My updated book",
+  "slug": "my-updated-book",
+  "description": "This is my book with updated details",
   "created_at": "2020-01-12T14:09:59.000000Z",
   "updated_at": "2020-01-12T14:16:10.000000Z",
   "created_by": 1,
   "updated_by": 1,
-  "owned_by": 1
+  "owned_by": 1,
+  "default_template_id": 12
 }
\ No newline at end of file
diff --git a/lang/en/entities.php b/lang/en/entities.php
index cfb5aae1a..354eee42e 100644
--- a/lang/en/entities.php
+++ b/lang/en/entities.php
@@ -132,6 +132,9 @@ return [
     'books_edit_named' => 'Edit Book :bookName',
     'books_form_book_name' => 'Book Name',
     'books_save' => 'Save Book',
+    'books_default_template' => 'Default Page Template',
+    'books_default_template_explain' => 'Assign a page template that will be used as the default content for all new pages in this book. Keep in mind this will only be used if the page creator has view access to those chosen template page.',
+    'books_default_template_select' => 'Select a template page',
     'books_permissions' => 'Book Permissions',
     'books_permissions_updated' => 'Book Permissions Updated',
     'books_empty_contents' => 'No pages or chapters have been created for this book.',
@@ -204,6 +207,7 @@ return [
     'pages_delete_draft' => 'Delete Draft Page',
     'pages_delete_success' => 'Page deleted',
     'pages_delete_draft_success' => 'Draft page deleted',
+    'pages_delete_warning_template' => 'This page is in active use as a book default page template. These books will no longer have a default page template assigned after this page is deleted.',
     'pages_delete_confirm' => 'Are you sure you want to delete this page?',
     'pages_delete_draft_confirm' => 'Are you sure you want to delete this draft page?',
     'pages_editing_named' => 'Editing Page :pageName',
diff --git a/resources/js/components/entity-selector.js b/resources/js/components/entity-selector.js
index 9cda35874..b12eeb402 100644
--- a/resources/js/components/entity-selector.js
+++ b/resources/js/components/entity-selector.js
@@ -10,6 +10,7 @@ export class EntitySelector extends Component {
         this.elem = this.$el;
         this.entityTypes = this.$opts.entityTypes || 'page,book,chapter';
         this.entityPermission = this.$opts.entityPermission || 'view';
+        this.searchEndpoint = this.$opts.searchEndpoint || '/search/entity-selector';
 
         this.input = this.$refs.input;
         this.searchInput = this.$refs.search;
@@ -18,7 +19,6 @@ export class EntitySelector extends Component {
 
         this.search = '';
         this.lastClick = 0;
-        this.selectedItemData = null;
 
         this.setupListeners();
         this.showLoading();
@@ -110,7 +110,7 @@ export class EntitySelector extends Component {
     }
 
     searchUrl() {
-        return `/search/entity-selector?types=${encodeURIComponent(this.entityTypes)}&permission=${encodeURIComponent(this.entityPermission)}`;
+        return `${this.searchEndpoint}?types=${encodeURIComponent(this.entityTypes)}&permission=${encodeURIComponent(this.entityPermission)}`;
     }
 
     searchEntities(searchTerm) {
@@ -153,7 +153,6 @@ export class EntitySelector extends Component {
 
         if (isSelected) {
             item.classList.add('selected');
-            this.selectedItemData = data;
         } else {
             window.$events.emit('entity-select-change', null);
         }
@@ -177,7 +176,6 @@ export class EntitySelector extends Component {
         for (const selectedElem of selected) {
             selectedElem.classList.remove('selected', 'primary-background');
         }
-        this.selectedItemData = null;
     }
 
 }
diff --git a/resources/js/components/page-picker.js b/resources/js/components/page-picker.js
index 130972fdd..9bb0bee04 100644
--- a/resources/js/components/page-picker.js
+++ b/resources/js/components/page-picker.js
@@ -1,7 +1,7 @@
 import {Component} from './component';
 
 function toggleElem(elem, show) {
-    elem.style.display = show ? null : 'none';
+    elem.toggleAttribute('hidden', !show);
 }
 
 export class PagePicker extends Component {
@@ -21,6 +21,7 @@ export class PagePicker extends Component {
     setupListeners() {
         this.selectButton.addEventListener('click', this.showPopup.bind(this));
         this.display.parentElement.addEventListener('click', this.showPopup.bind(this));
+        this.display.addEventListener('click', e => e.stopPropagation());
 
         this.resetButton.addEventListener('click', () => {
             this.setValue('', '');
diff --git a/resources/sass/_forms.scss b/resources/sass/_forms.scss
index 2257e8000..cd5d929f4 100644
--- a/resources/sass/_forms.scss
+++ b/resources/sass/_forms.scss
@@ -434,7 +434,7 @@ input[type=color] {
   &.flexible input {
     width: 100%;
   }
-  .search-box-cancel {
+  button.search-box-cancel {
     left: auto;
     right: 0;
   }
diff --git a/resources/sass/_layout.scss b/resources/sass/_layout.scss
index d157ffdc3..6c78419d8 100644
--- a/resources/sass/_layout.scss
+++ b/resources/sass/_layout.scss
@@ -266,10 +266,18 @@ body.flexbox {
   display: none !important;
 }
 
-.fill-height {
+.overflow-hidden {
+  overflow: hidden;
+}
+
+.height-fill {
   height: 100%;
 }
 
+.height-auto {
+  height: auto !important;
+}
+
 .float {
   float: left;
   &.right {
diff --git a/resources/views/books/create.blade.php b/resources/views/books/create.blade.php
index eead4191c..318abfcf1 100644
--- a/resources/views/books/create.blade.php
+++ b/resources/views/books/create.blade.php
@@ -27,8 +27,10 @@
 
         <main class="content-wrap card">
             <h1 class="list-heading">{{ trans('entities.books_create') }}</h1>
-            <form action="{{ isset($bookshelf) ? $bookshelf->getUrl('/create-book') : url('/books') }}" method="POST" enctype="multipart/form-data">
-                @include('books.parts.form', ['returnLocation' => isset($bookshelf) ? $bookshelf->getUrl() : url('/books')])
+            <form action="{{ $bookshelf?->getUrl('/create-book') ?? url('/books') }}" method="POST" enctype="multipart/form-data">
+                @include('books.parts.form', [
+                    'returnLocation' => $bookshelf?->getUrl() ?? url('/books')
+                ])
             </form>
         </main>
     </div>
diff --git a/resources/views/books/edit.blade.php b/resources/views/books/edit.blade.php
index 180500e0a..6efd1caea 100644
--- a/resources/views/books/edit.blade.php
+++ b/resources/views/books/edit.blade.php
@@ -18,7 +18,10 @@
             <h1 class="list-heading">{{ trans('entities.books_edit') }}</h1>
             <form action="{{ $book->getUrl() }}" method="POST" enctype="multipart/form-data">
                 <input type="hidden" name="_method" value="PUT">
-                @include('books.parts.form', ['model' => $book, 'returnLocation' => $book->getUrl()])
+                @include('books.parts.form', [
+                    'model' => $book,
+                    'returnLocation' => $book->getUrl()
+                ])
             </form>
         </main>
 
diff --git a/resources/views/books/parts/form.blade.php b/resources/views/books/parts/form.blade.php
index 56d385c9e..e22be619d 100644
--- a/resources/views/books/parts/form.blade.php
+++ b/resources/views/books/parts/form.blade.php
@@ -35,7 +35,31 @@
     </div>
 </div>
 
+<div class="form-group collapsible" component="collapsible" id="template-control">
+    <button refs="collapsible@trigger" type="button" class="collapse-title text-primary" aria-expanded="false">
+        <label for="template-manager">{{ trans('entities.books_default_template') }}</label>
+    </button>
+    <div refs="collapsible@content" class="collapse-content">
+        <div class="flex-container-row gap-l justify-space-between pb-xs wrap">
+            <p class="text-muted small my-none min-width-xs flex">
+                {{ trans('entities.books_default_template_explain') }}
+            </p>
+
+            <div class="min-width-m">
+                @include('form.page-picker', [
+                    'name' => 'default_template_id',
+                    'placeholder' => trans('entities.books_default_template_select'),
+                    'value' => $book->default_template_id ?? null,
+                ])
+            </div>
+        </div>
+
+    </div>
+</div>
+
 <div class="form-group text-right">
     <a href="{{ $returnLocation }}" class="button outline">{{ trans('common.cancel') }}</a>
     <button type="submit" class="button">{{ trans('entities.books_save') }}</button>
-</div>
\ No newline at end of file
+</div>
+
+@include('entities.selector-popup', ['entityTypes' => 'page', 'selectorEndpoint' => '/search/entity-selector-templates'])
\ No newline at end of file
diff --git a/resources/views/entities/selector-popup.blade.php b/resources/views/entities/selector-popup.blade.php
index c896b50b5..d4c941e9a 100644
--- a/resources/views/entities/selector-popup.blade.php
+++ b/resources/views/entities/selector-popup.blade.php
@@ -7,7 +7,7 @@
             </div>
             @include('entities.selector', ['name' => 'entity-selector'])
             <div class="popup-footer">
-                <button refs="entity-selector-popup@select" type="button" disabled="true" class="button">{{ trans('common.select') }}</button>
+                <button refs="entity-selector-popup@select" type="button" disabled class="button">{{ trans('common.select') }}</button>
             </div>
         </div>
     </div>
diff --git a/resources/views/entities/selector.blade.php b/resources/views/entities/selector.blade.php
index a9f5b932c..c1280cfb2 100644
--- a/resources/views/entities/selector.blade.php
+++ b/resources/views/entities/selector.blade.php
@@ -3,7 +3,8 @@
          refs="entity-selector-popup@selector"
          class="entity-selector {{$selectorSize ?? ''}}"
          option:entity-selector:entity-types="{{ $entityTypes ?? 'book,chapter,page' }}"
-         option:entity-selector:entity-permission="{{ $entityPermission ?? 'view' }}">
+         option:entity-selector:entity-permission="{{ $entityPermission ?? 'view' }}"
+         option:entity-selector:search-endpoint="{{ $selectorEndpoint ?? '/search/entity-selector' }}">
         <input refs="entity-selector@input" type="hidden" name="{{$name}}" value="">
         <input refs="entity-selector@search" type="text" placeholder="{{ trans('common.search') }}" @if($autofocus ?? false) autofocus @endif>
         <div class="text-center loading" refs="entity-selector@loading">@include('common.loading-icon')</div>
diff --git a/resources/views/form/page-picker.blade.php b/resources/views/form/page-picker.blade.php
new file mode 100644
index 000000000..d9810d575
--- /dev/null
+++ b/resources/views/form/page-picker.blade.php
@@ -0,0 +1,13 @@
+
+{{--Depends on entity selector popup--}}
+<div component="page-picker">
+    <div class="input-base overflow-hidden height-auto">
+        <span @if($value) hidden @endif refs="page-picker@default-display" class="text-muted italic">{{ $placeholder }}</span>
+        <a @if(!$value) hidden @endif href="{{ url('/link/' . $value) }}" target="_blank" rel="noopener" class="text-page" refs="page-picker@display">#{{$value}}, {{$value ? \BookStack\Entities\Models\Page::query()->visible()->find($value)->name ?? '' : '' }}</a>
+    </div>
+    <br>
+    <input refs="page-picker@input" type="hidden" value="{{$value}}" name="{{$name}}" id="{{$name}}">
+    <button @if(!$value) hidden @endif type="button" refs="page-picker@reset-button" class="text-button">{{ trans('common.reset') }}</button>
+    <span refs="page-picker@button-seperator" @if(!$value) hidden @endif class="sep">|</span>
+    <button type="button" refs="page-picker@select-button" class="text-button">{{ trans('common.select') }}</button>
+</div>
\ No newline at end of file
diff --git a/resources/views/pages/delete.blade.php b/resources/views/pages/delete.blade.php
index 39cd07bbb..a9c4b73ad 100644
--- a/resources/views/pages/delete.blade.php
+++ b/resources/views/pages/delete.blade.php
@@ -19,6 +19,9 @@
         <div class="card content-wrap auto-height">
             <h1 class="list-heading">{{ $page->draft ? trans('entities.pages_delete_draft') : trans('entities.pages_delete') }}</h1>
 
+            @if($usedAsTemplate)
+                <p class="text-warn">{{ trans('entities.pages_delete_warning_template') }}</p>
+            @endif
 
             <div class="grid half v-center">
                 <div>
diff --git a/resources/views/pages/edit.blade.php b/resources/views/pages/edit.blade.php
index 841b27503..58fb5f355 100644
--- a/resources/views/pages/edit.blade.php
+++ b/resources/views/pages/edit.blade.php
@@ -4,7 +4,7 @@
 
 @section('content')
 
-    <div id="main-content" class="flex-fill flex fill-height">
+    <div id="main-content" class="flex-fill flex height-fill">
         <form action="{{ $page->getUrl() }}" autocomplete="off" data-page-id="{{ $page->id }}" method="POST" class="flex flex-fill">
             {{ csrf_field() }}
 
diff --git a/resources/views/pages/guest-create.blade.php b/resources/views/pages/guest-create.blade.php
index d6e1cae44..11970b8b6 100644
--- a/resources/views/pages/guest-create.blade.php
+++ b/resources/views/pages/guest-create.blade.php
@@ -22,7 +22,7 @@
 
                 <div class="form-group title-input">
                     <label for="name">{{ trans('entities.pages_name') }}</label>
-                    @include('form.text', ['name' => 'name'])
+                    @include('form.text', ['name' => 'name', 'autofocus' => true])
                 </div>
 
                 <div class="form-group text-right">
diff --git a/resources/views/pages/parts/template-manager.blade.php b/resources/views/pages/parts/template-manager.blade.php
index c209626cd..ee4467552 100644
--- a/resources/views/pages/parts/template-manager.blade.php
+++ b/resources/views/pages/parts/template-manager.blade.php
@@ -14,7 +14,7 @@
     <div class="search-box flexible mb-m" style="display: {{ count($templates) > 0 ? 'block' : 'none' }}">
         <input refs="template-manager@searchInput" type="text" name="template-search" placeholder="{{ trans('common.search') }}">
         <button refs="template-manager@searchButton" tabindex="-1" type="button">@icon('search')</button>
-        <button refs="template-manager@searchCancel" class="search-box-cancel text-neg" type="button" style="display: none">@icon('close')</button>
+        <button refs="template-manager@searchCancel" class="search-box-cancel text-neg" tabindex="-1" type="button" style="display: none">@icon('close')</button>
     </div>
 
     <div refs="template-manager@list">
diff --git a/resources/views/settings/customization.blade.php b/resources/views/settings/customization.blade.php
index be99cc254..7112ebcff 100644
--- a/resources/views/settings/customization.blade.php
+++ b/resources/views/settings/customization.blade.php
@@ -133,7 +133,7 @@
                     </select>
 
                     <div refs="setting-homepage-control@page-picker-container" style="display: none;" class="mt-m">
-                        @include('settings.parts.page-picker', ['name' => 'setting-app-homepage', 'placeholder' => trans('settings.app_homepage_select'), 'value' => setting('app-homepage')])
+                        @include('form.page-picker', ['name' => 'setting-app-homepage', 'placeholder' => trans('settings.app_homepage_select'), 'value' => setting('app-homepage')])
                     </div>
                 </div>
             </div>
diff --git a/resources/views/settings/parts/page-picker.blade.php b/resources/views/settings/parts/page-picker.blade.php
deleted file mode 100644
index d599a19ab..000000000
--- a/resources/views/settings/parts/page-picker.blade.php
+++ /dev/null
@@ -1,13 +0,0 @@
-
-{{--Depends on entity selector popup--}}
-<div component="page-picker">
-    <div class="input-base">
-        <span @if($value) style="display: none" @endif refs="page-picker@default-display" class="text-muted italic">{{ $placeholder }}</span>
-        <a @if(!$value) style="display: none" @endif href="{{ url('/link/' . $value) }}" target="_blank" rel="noopener" class="text-page" refs="page-picker@display">#{{$value}}, {{$value ? \BookStack\Entities\Models\Page::find($value)->name : '' }}</a>
-    </div>
-    <br>
-    <input refs="page-picker@input" type="hidden" value="{{$value}}" name="{{$name}}" id="{{$name}}">
-    <button @if(!$value) style="display: none" @endif type="button" refs="page-picker@reset-button" class="text-button">{{ trans('common.reset') }}</button>
-    <span refs="page-picker@button-seperator" @if(!$value) style="display: none" @endif class="sep">|</span>
-    <button type="button" refs="page-picker@select-button" class="text-button">{{ trans('common.select') }}</button>
-</div>
\ No newline at end of file
diff --git a/routes/web.php b/routes/web.php
index 8fc90ee54..4620cd08b 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -182,6 +182,7 @@ Route::middleware('auth')->group(function () {
     Route::get('/search/chapter/{bookId}', [SearchController::class, 'searchChapter']);
     Route::get('/search/entity/siblings', [SearchController::class, 'searchSiblings']);
     Route::get('/search/entity-selector', [SearchController::class, 'searchForSelector']);
+    Route::get('/search/entity-selector-templates', [SearchController::class, 'templatesForSelector']);
     Route::get('/search/suggest', [SearchController::class, 'searchSuggestions']);
 
     // User Search
diff --git a/tests/Api/BooksApiTest.php b/tests/Api/BooksApiTest.php
index 326304d6f..c648faaf2 100644
--- a/tests/Api/BooksApiTest.php
+++ b/tests/Api/BooksApiTest.php
@@ -31,13 +31,16 @@ class BooksApiTest extends TestCase
     public function test_create_endpoint()
     {
         $this->actingAsApiEditor();
+        $templatePage = $this->entities->templatePage();
         $details = [
             'name'        => 'My API book',
             'description' => 'A book created via the API',
+            'default_template_id' => $templatePage->id,
         ];
 
         $resp = $this->postJson($this->baseEndpoint, $details);
         $resp->assertStatus(200);
+
         $newItem = Book::query()->orderByDesc('id')->where('name', '=', $details['name'])->first();
         $resp->assertJson(array_merge($details, ['id' => $newItem->id, 'slug' => $newItem->slug]));
         $this->assertActivityExists('book_create', $newItem);
@@ -83,6 +86,7 @@ class BooksApiTest extends TestCase
             'owned_by' => [
                 'name' => $book->ownedBy->name,
             ],
+            'default_template_id' => null,
         ]);
     }
 
@@ -121,9 +125,11 @@ class BooksApiTest extends TestCase
     {
         $this->actingAsApiEditor();
         $book = $this->entities->book();
+        $templatePage = $this->entities->templatePage();
         $details = [
             'name'        => 'My updated API book',
             'description' => 'A book created via the API',
+            'default_template_id' => $templatePage->id,
         ];
 
         $resp = $this->putJson($this->baseEndpoint . "/{$book->id}", $details);
diff --git a/tests/Entity/BookDefaultTemplateTest.php b/tests/Entity/BookDefaultTemplateTest.php
new file mode 100644
index 000000000..d4cd5b2c3
--- /dev/null
+++ b/tests/Entity/BookDefaultTemplateTest.php
@@ -0,0 +1,185 @@
+<?php
+
+namespace Tests\Entity;
+
+use BookStack\Entities\Models\Book;
+use BookStack\Entities\Models\Page;
+use Tests\TestCase;
+
+class BookDefaultTemplateTest extends TestCase
+{
+    public function test_creating_book_with_default_template()
+    {
+        $templatePage = $this->entities->templatePage();
+        $details = [
+            'name' => 'My book with default template',
+            'default_template_id' => $templatePage->id,
+        ];
+
+        $this->asEditor()->post('/books', $details);
+        $this->assertDatabaseHas('books', $details);
+    }
+
+    public function test_updating_book_with_default_template()
+    {
+        $book = $this->entities->book();
+        $templatePage = $this->entities->templatePage();
+
+        $this->asEditor()->put("/books/{$book->slug}", ['name' => $book->name, 'default_template_id' => strval($templatePage->id)]);
+        $this->assertDatabaseHas('books', ['id' => $book->id, 'default_template_id' => $templatePage->id]);
+
+        $this->asEditor()->put("/books/{$book->slug}", ['name' => $book->name, 'default_template_id' => '']);
+        $this->assertDatabaseHas('books', ['id' => $book->id, 'default_template_id' => null]);
+    }
+
+    public function test_default_template_cannot_be_set_if_not_a_template()
+    {
+        $book = $this->entities->book();
+        $page = $this->entities->page();
+        $this->assertFalse($page->template);
+
+        $this->asEditor()->put("/books/{$book->slug}", ['name' => $book->name, 'default_template_id' => $page->id]);
+        $this->assertDatabaseHas('books', ['id' => $book->id, 'default_template_id' => null]);
+    }
+
+    public function test_default_template_cannot_be_set_if_not_have_access()
+    {
+        $book = $this->entities->book();
+        $templatePage = $this->entities->templatePage();
+        $this->permissions->disableEntityInheritedPermissions($templatePage);
+
+        $this->asEditor()->put("/books/{$book->slug}", ['name' => $book->name, 'default_template_id' => $templatePage->id]);
+        $this->assertDatabaseHas('books', ['id' => $book->id, 'default_template_id' => null]);
+    }
+
+    public function test_inaccessible_default_template_can_be_set_if_unchanged()
+    {
+        $templatePage = $this->entities->templatePage();
+        $book = $this->bookUsingDefaultTemplate($templatePage);
+        $this->permissions->disableEntityInheritedPermissions($templatePage);
+
+        $this->asEditor()->put("/books/{$book->slug}", ['name' => $book->name, 'default_template_id' => $templatePage->id]);
+        $this->assertDatabaseHas('books', ['id' => $book->id, 'default_template_id' => $templatePage->id]);
+    }
+
+    public function test_default_page_template_option_shows_on_book_form()
+    {
+        $templatePage = $this->entities->templatePage();
+        $book = $this->bookUsingDefaultTemplate($templatePage);
+
+        $resp = $this->asEditor()->get($book->getUrl('/edit'));
+        $this->withHtml($resp)->assertElementExists('input[name="default_template_id"][value="' . $templatePage->id . '"]');
+    }
+
+    public function test_default_page_template_option_only_shows_template_name_if_visible()
+    {
+        $templatePage = $this->entities->templatePage();
+        $book = $this->bookUsingDefaultTemplate($templatePage);
+
+        $resp = $this->asEditor()->get($book->getUrl('/edit'));
+        $this->withHtml($resp)->assertElementContains('#template-control a.text-page', "#{$templatePage->id}, {$templatePage->name}");
+
+        $this->permissions->disableEntityInheritedPermissions($templatePage);
+
+        $resp = $this->asEditor()->get($book->getUrl('/edit'));
+        $this->withHtml($resp)->assertElementNotContains('#template-control a.text-page', "#{$templatePage->id}, {$templatePage->name}");
+        $this->withHtml($resp)->assertElementContains('#template-control a.text-page', "#{$templatePage->id}");
+    }
+
+    public function test_creating_book_page_uses_default_template()
+    {
+        $templatePage = $this->entities->templatePage();
+        $templatePage->forceFill(['html' => '<p>My template page</p>', 'markdown' => '# My template page'])->save();
+        $book = $this->bookUsingDefaultTemplate($templatePage);
+
+        $this->asEditor()->get($book->getUrl('/create-page'));
+        $latestPage = $book->pages()
+            ->where('draft', '=', true)
+            ->where('template', '=', false)
+            ->latest()->first();
+
+        $this->assertEquals('<p>My template page</p>', $latestPage->html);
+        $this->assertEquals('# My template page', $latestPage->markdown);
+    }
+
+    public function test_creating_chapter_page_uses_default_template()
+    {
+        $templatePage = $this->entities->templatePage();
+        $templatePage->forceFill(['html' => '<p>My template page in chapter</p>', 'markdown' => '# My template page in chapter'])->save();
+        $book = $this->bookUsingDefaultTemplate($templatePage);
+        $chapter = $book->chapters()->first();
+
+        $this->asEditor()->get($chapter->getUrl('/create-page'));
+        $latestPage = $chapter->pages()
+            ->where('draft', '=', true)
+            ->where('template', '=', false)
+            ->latest()->first();
+
+        $this->assertEquals('<p>My template page in chapter</p>', $latestPage->html);
+        $this->assertEquals('# My template page in chapter', $latestPage->markdown);
+    }
+
+    public function test_creating_book_page_as_guest_uses_default_template()
+    {
+        $templatePage = $this->entities->templatePage();
+        $templatePage->forceFill(['html' => '<p>My template page</p>', 'markdown' => '# My template page'])->save();
+        $book = $this->bookUsingDefaultTemplate($templatePage);
+        $guest = $this->users->guest();
+
+        $this->permissions->makeAppPublic();
+        $this->permissions->grantUserRolePermissions($guest, ['page-create-all', 'page-update-all']);
+
+        $resp = $this->post($book->getUrl('/create-guest-page'), [
+            'name' => 'My guest page with template'
+        ]);
+        $latestPage = $book->pages()
+            ->where('draft', '=', false)
+            ->where('template', '=', false)
+            ->where('created_by', '=', $guest->id)
+            ->latest()->first();
+
+        $this->assertEquals('<p>My template page</p>', $latestPage->html);
+        $this->assertEquals('# My template page', $latestPage->markdown);
+    }
+
+    public function test_creating_book_page_does_not_use_template_if_not_visible()
+    {
+        $templatePage = $this->entities->templatePage();
+        $templatePage->forceFill(['html' => '<p>My template page</p>', 'markdown' => '# My template page'])->save();
+        $book = $this->bookUsingDefaultTemplate($templatePage);
+        $this->permissions->disableEntityInheritedPermissions($templatePage);
+
+        $this->asEditor()->get($book->getUrl('/create-page'));
+        $latestPage = $book->pages()
+            ->where('draft', '=', true)
+            ->where('template', '=', false)
+            ->latest()->first();
+
+        $this->assertEquals('', $latestPage->html);
+        $this->assertEquals('', $latestPage->markdown);
+    }
+
+    public function test_template_page_delete_removes_book_template_usage()
+    {
+        $templatePage = $this->entities->templatePage();
+        $book = $this->bookUsingDefaultTemplate($templatePage);
+
+        $book->refresh();
+        $this->assertEquals($templatePage->id, $book->default_template_id);
+
+        $this->asEditor()->delete($templatePage->getUrl());
+        $this->asAdmin()->post('/settings/recycle-bin/empty');
+
+        $book->refresh();
+        $this->assertEquals(null, $book->default_template_id);
+    }
+
+    protected function bookUsingDefaultTemplate(Page $page): Book
+    {
+        $book = $this->entities->book();
+        $book->default_template_id = $page->id;
+        $book->save();
+
+        return $book;
+    }
+}
diff --git a/tests/Entity/EntitySearchTest.php b/tests/Entity/EntitySearchTest.php
index fbb47226e..9b77a32ab 100644
--- a/tests/Entity/EntitySearchTest.php
+++ b/tests/Entity/EntitySearchTest.php
@@ -252,6 +252,39 @@ class EntitySearchTest extends TestCase
         $this->withHtml($resp)->assertElementContains($baseSelector, "You don't have the required permissions to select this item");
     }
 
+    public function test_entity_template_selector_search()
+    {
+        $templatePage = $this->entities->newPage(['name' => 'Template search test', 'html' => 'template test']);
+        $templatePage->template = true;
+        $templatePage->save();
+
+        $nonTemplatePage = $this->entities->newPage(['name' => 'Nontemplate page', 'html' => 'nontemplate', 'template' => false]);
+
+        // Visit both to make popular
+        $this->asEditor()->get($templatePage->getUrl());
+        $this->get($nonTemplatePage->getUrl());
+
+        $normalSearch = $this->get('/search/entity-selector-templates?term=test');
+        $normalSearch->assertSee($templatePage->name);
+        $normalSearch->assertDontSee($nonTemplatePage->name);
+
+        $normalSearch = $this->get('/search/entity-selector-templates?term=beans');
+        $normalSearch->assertDontSee($templatePage->name);
+        $normalSearch->assertDontSee($nonTemplatePage->name);
+
+        $defaultListTest = $this->get('/search/entity-selector-templates');
+        $defaultListTest->assertSee($templatePage->name);
+        $defaultListTest->assertDontSee($nonTemplatePage->name);
+
+        $this->permissions->disableEntityInheritedPermissions($templatePage);
+
+        $normalSearch = $this->get('/search/entity-selector-templates?term=test');
+        $normalSearch->assertDontSee($templatePage->name);
+
+        $defaultListTest = $this->get('/search/entity-selector-templates');
+        $defaultListTest->assertDontSee($templatePage->name);
+    }
+
     public function test_sibling_search_for_pages()
     {
         $chapter = $this->entities->chapterHasPages();
diff --git a/tests/Helpers/EntityProvider.php b/tests/Helpers/EntityProvider.php
index 3cb8c44d3..982063421 100644
--- a/tests/Helpers/EntityProvider.php
+++ b/tests/Helpers/EntityProvider.php
@@ -53,6 +53,15 @@ class EntityProvider
         return $this->page(fn(Builder $query) => $query->where('chapter_id', '=', 0));
     }
 
+    public function templatePage(): Page
+    {
+        $page = $this->page();
+        $page->template = true;
+        $page->save();
+
+        return $page;
+    }
+
     /**
      * Get an un-fetched chapter from the system.
      */
diff --git a/tests/Helpers/PermissionsProvider.php b/tests/Helpers/PermissionsProvider.php
index 512f43fb6..cb036fe97 100644
--- a/tests/Helpers/PermissionsProvider.php
+++ b/tests/Helpers/PermissionsProvider.php
@@ -5,16 +5,21 @@ namespace Tests\Helpers;
 use BookStack\Entities\Models\Entity;
 use BookStack\Permissions\Models\EntityPermission;
 use BookStack\Permissions\Models\RolePermission;
+use BookStack\Settings\SettingService;
 use BookStack\Users\Models\Role;
 use BookStack\Users\Models\User;
 
 class PermissionsProvider
 {
-    protected UserRoleProvider $userRoleProvider;
+    public function __construct(
+        protected UserRoleProvider $userRoleProvider
+    ) {
+    }
 
-    public function __construct(UserRoleProvider $userRoleProvider)
+    public function makeAppPublic(): void
     {
-        $this->userRoleProvider = $userRoleProvider;
+        $settings = app(SettingService::class);
+        $settings->put('app-public', 'true');
     }
 
     /**