diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # Essential Java.《Java 编程要点》
 
+> 本开源书 forked from [Java 编程要点](https://github.com/waylau/essential-java)，作者为 [waylau](https://github.com/waylau)，欢迎大家 star 原作者的 [repo](https://github.com/waylau/essential-java)，以便获得最新更新，谢谢！
+
 ![](java_logo.jpg)
 
 Essential Java, is a book about the Essentials of Java Programming.
@@ -32,4 +34,4 @@ There is also a GitBook version of this book: <http://waylau.gitbooks.io/essenti
 * Gmail: [waylau521(at)gmail.com](mailto:waylau521@gmail.com)
 * Weibo: [waylau521](http://weibo.com/waylau521)
 * Twitter: [waylau521](https://twitter.com/waylau521)
-* Github : [waylau](https://github.com/waylau)
\ No newline at end of file
+* Github : [waylau](https://github.com/waylau)