diff --git a/trees/bt_serialization.py b/trees/bt_serialization.py
deleted file mode 100644
index 62ea148..0000000
--- a/trees/bt_serialization.py
+++ /dev/null
@@ -1,47 +0,0 @@
-#!/usr/bin/env python3
-# -*- coding: utf-8 -*-
-# author: bt3gl
-
-'''
-Serialization is the process of converting a data structure or object into 
-a sequence of bits so that it can be stored in a file or memory buffer, or 
-transmitted across a network connection link to be reconstructed later in 
-the same or another computer environment.
-
-Design an algorithm to serialize and deserialize a binary tree. There is no 
-restriction on how your serialization/deserialization algorithm should work. 
-You just need to ensure that a binary tree can be serialized to a string and 
-this string can be deserialized to the original tree structure.
-'''
-
-
-class Codec:
-
-    def serialize(self, root):
-
-        def helper(root, string):
-            if root is None:
-                string += 'None,'
-            else:
-                string += str(root.val) + ','
-                string = helper(root.left, string)
-                string = helper(root.right, string)
-            return string
-        
-        return helper(root, '')
-    
-    def deserialize(self, data):
-
-        def helper(data):
-            if data[0] == 'None':
-                data.pop(0)
-                return None
-            root_val = data.pop(0)
-            root = TreeNode(root_val)
-            root.left = helper(data)
-            root.right = helper(data)
-            return root
-
-        root = helper(data.split(','))
-        
-        return root