diff --git a/free-programming-books.md b/free-programming-books.md
index dea47cbe974af0ccadd0a54fb1eecec24c9b43c7..eafba5b754d8ba3e09d11aaf423106dbc5a6f42a 100644
--- a/free-programming-books.md
+++ b/free-programming-books.md
@@ -1248,6 +1248,7 @@ Kerridge (PDF) (email address *requested*, not required)
 * [Git Succinctly, Syncfusion](https://www.syncfusion.com/resources/techportal/ebooks/git) (PDF, Kindle) (email address *requested*, not required)
 * [Git Workflows](http://documentup.com/skwp/git-workflows-book)
 * [GitHub Cheat Sheet](https://github.com/tiimgreen/github-cheat-sheet) - Tim Green (Markdown)
+* [How to Collaborate on Github](https://github.com/eonist/How-to-collaborate-on-github) - André J
 * [Intoduction to Git and Github](https://launchschool.com/books/git) - Launch School
 * [Intoduction to Git and Github - Tutorial](http://cse.unl.edu/~cbourke/gitTutorial.pdf) - Dr. Chris Bourke (PDF)
 * [Learn Git - Learn Version Control with Git](http://www.git-tower.com/learn/git/ebook/command-line/introduction) - Tobias Günther