diff --git a/free-programming-books.md b/free-programming-books.md
index e3df44cd..d5bb99c3 100644
--- a/free-programming-books.md
+++ b/free-programming-books.md
@@ -598,6 +598,7 @@
 ####D3.js
 
 * [Interactive Data Visualization for the Web](http://chimera.labs.oreilly.com/books/1230000000345/index.html)
+* [D3 Tips and Tricks](https://leanpub.com/D3-Tips-and-Tricks)
 
 ####jQuery