diff --git a/free-programming-books-zh.md b/free-programming-books-zh.md
index 334dcdecdea16aa7abbb579cbb95ee444a09400b..d6d12e3647cd68305ab5b7f84a8e012fa787174f 100644
--- a/free-programming-books-zh.md
+++ b/free-programming-books-zh.md
@@ -19,6 +19,7 @@
 * [Udacity](https://www.udacity.com/)
 * [xuetangX](https://www.xuetangx.com/)
 * [Codecademy](http://www.codecademy.com/?locale_code=zh)
+* [CodeSchool](https://www.codeschool.com/)
 
 
 ###软件开发方法