- Minimum Cover Width: Bleed + Back Cover Trim Size + Spine Width + Front Cover Trim Size + Bleed
- Minimum Cover Height: Bleed + Book Height Trim Size + Bleed
### Safe Zone
Text and images must be at least .125" inside the trim lines.
### The spine of your book
Allow for 0.0625" variance on either side of the fold lines for your cover. For example, if your spine width is 1", your text should be no wider than 0.875". Because of this variance, avoid hard edges or lines that end on the fold line.
For books with 130 pages or less, we strongly recommend a blank spine. Blank spines are required for books with less than 101 pages.
### Barcode
When your files go through the review process, our system will place your ISBN barcode in a 2" by 1.2" white box in the lower right-hand corner of your book's back cover.
If you choose to provide and place your own barcode, be sure it is a high-resolution image. The barcode can be located on the back or front cover of your book, at a recommended size of 2" wide by 1.2" tall.
