From 8df41f416ae2f8f6ce60b901812a0b98b942c9c8 Mon Sep 17 00:00:00 2001
From: fernando-barajas <fernando.barajas@crowdint.com>
Date: Wed, 23 Oct 2013 23:23:50 -0500
Subject: [PATCH]   Add Ruby User's Guide

---
 free-programming-books.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/free-programming-books.md b/free-programming-books.md
index 99150b39..0b263449 100644
--- a/free-programming-books.md
+++ b/free-programming-books.md
@@ -887,6 +887,7 @@ See also [TeX](#tex)
 * [Ruby Learning](http://rubylearning.com/)
 * [Try Ruby](http://tryruby.org/)
 * [Ruby Koans](http://www.rubykoans.com/)
+* [Ruby User's Guide](http://www.rubyist.net/~slagell/ruby/)
 
 
 ###Ruby on Rails