diff --git a/free-programming-books.md b/free-programming-books.md
index 31aef4591..ad790c5fe 100644
--- a/free-programming-books.md
+++ b/free-programming-books.md
@@ -872,6 +872,7 @@ See also [TeX](#tex)
 * [Ruby in Twenty Minutes](https://www.ruby-lang.org/en/documentation/quickstart/)
 * [Ruby Essentials](http://www.techotopia.com/index.php/Ruby_Essentials)
 * [Ruby Learning](http://rubylearning.com/)
+* [Try Ruby](http://tryruby.org/)
 
 
 ###Ruby on Rails