Merge pull request #977 from hoganlong/alpha-en

A Visual Git Reference

free-programming-books.md

@@ -816,6 +816,7 @@
 
 
 ###Git
+* [A Visual Git Reference](http://marklodato.github.io/visual-git-guide/index-en.html) - Mark Lodato
 * [Conversational Git](http://blog.anvard.org/conversational-git/)
 * [Git From The Bottom Up](http://ftp.newartisans.com/pub/git.from.bottom.up.pdf) (PDF)
 * [Git Immersion](http://gitimmersion.com)