diff --git a/preface.md b/preface.md
index 7ef0c30..8671dea 100644
--- a/preface.md
+++ b/preface.md
@@ -18,6 +18,7 @@ Go语言圣经 [《The Go Programming Language》](http://gopl.io) 中文版本
 - http://2goo.info/media/html/gopl-zh-gh-pages/
 - http://docs.plhwin.com/gopl-zh/
 - https://docs.hacknode.org/gopl-zh/
+- http://books.studygolang.com/gopl-zh/
 
 {% include "./version.md" %}