diff --git a/README.md b/README.md
index 9be2243..49d231b 100644
--- a/README.md
+++ b/README.md
@@ -4,4 +4,5 @@ This is a guidebook for how to use the UBAI system.
 
 It is owned by the Urban Big Data and AI Institution of the University of Seoul (http://ubai.uos.ac.kr).
 
-You can use the book at this link.
+You can use the book at **[this link](https://uos-ubai.github.io/user_guide/)**.
+