books: learn go affiliate link
diff --git a/Books.md b/Books.md
index ed07708..4316350 100644
--- a/Books.md
+++ b/Books.md
@@ -107,7 +107,7 @@
     * Author: Nathan Youngman
     * Publication Date: Spring 2016 (estimated)
     * ISBN: 9781617293092
-    * Reference: https://www.manning.com/books/learn-go
+    * Reference: [https://www.manning.com/books/learn-go](https://manning.com/books/learn-go?a_aid=nathany&a_bid=53f68821)
 
 ## Pre-order