diff --git a/free-programming-books.md b/free-programming-books.md
index 6a86f0a94..4df0c751e 100755
--- a/free-programming-books.md
+++ b/free-programming-books.md
@@ -751,6 +751,7 @@
 * [The Problem with Native JavaScript APIs](http://chimera.labs.oreilly.com/books/1234000001655) (PDF)
 * [Learn to Code JavaScript by Playing a Game](http://codecombat.com)
 * [You Don't Know JS](https://github.com/getify/You-Dont-Know-JS)
+* [JS Robots](http://markdaggett.com/images/ExpertJavaScript-ch6.pdf)
 
 ####Angular.js