diff --git a/docs-2.0/README.md b/docs-2.0/README.md
index 2a50b2ef44e..ab1c01e5be4 100644
--- a/docs-2.0/README.md
+++ b/docs-2.0/README.md
@@ -15,5 +15,5 @@ Nebula Graph是一款开源的、分布式的、易扩展的原生图数据库
 
 - [Homepage](https://nebula-graph.com.cn/)
 - [视频](https://space.bilibili.com/472621355)
-- [书PDF](https://docs.nebula-graph.com.cn/site/pdf/NebulaGraph-book.pdf)
+- [<开源分布式图数据库 Nebula Graph 完全指南>](https://docs.nebula-graph.com.cn/site/pdf/NebulaGraph-book.pdf)