diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -772,6 +772,7 @@ Various resources, such as books, websites and articles, for improving your PHP
 * [Eloquent JavaScript](http://eloquentjavascript.net/) - A book about JavaScript programming by Marijn Haverbeke.
 * [Vagrant Cookbook](https://leanpub.com/vagrantcookbook) A book about creating Vagrant environments by Erika Heidi.
 * [Pro Git](http://git-scm.com/book/en/v2) - A book about Git by Scott Chacon and Ben Straub.
+* [Clean Code](http://www.amazon.com/Clean-Code-Handbook-Software-Craftsmanship/dp/0132350882) - A Handbook of Agile Software Craftsmanship.
 
 ## PHP Videos
 *Fantastic PHP-related videos.*