From 25744031ef0ca7e24f49629d69c03404b8cd2e8d Mon Sep 17 00:00:00 2001 From: Vincent Cantin Date: Thu, 24 Oct 2013 14:51:34 +0800 Subject: [PATCH] Update free-programming-books.md --- free-programming-books.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/free-programming-books.md b/free-programming-books.md index 99150b39..d43f9f92 100644 --- a/free-programming-books.md +++ b/free-programming-books.md @@ -884,6 +884,8 @@ See also [TeX](#tex) * [How To Think Like a Computer Scientist: Learning With Ruby](http://mysite.verizon.net/hpassel/thinkruby/) * [Ruby in Twenty Minutes](https://www.ruby-lang.org/en/documentation/quickstart/) * [Ruby Essentials](http://www.techotopia.com/index.php/Ruby_Essentials) +* [Ruby User's Guide](http://www.linuxtopia.org/online_books/programming_books/ruby_guide/) +* [Ruby Programming](http://www.linuxtopia.org/online_books/programming_books/ruby_tutorial/) * [Ruby Learning](http://rubylearning.com/) * [Try Ruby](http://tryruby.org/) * [Ruby Koans](http://www.rubykoans.com/)