diff --git a/free-programming-books-pt_BR.md b/free-programming-books-pt_BR.md
index e53971e9a09d6ff0e965e3e6d9da82f42b2f2497..32ef742d3bfb99b4f9c79826b7acf34716a9f024 100644
--- a/free-programming-books-pt_BR.md
+++ b/free-programming-books-pt_BR.md
@@ -93,6 +93,7 @@
 * [Pequeno Livro do Ruby](http://www.sismicro.com.br/ruby/Pequeno-Livro-do-Ruby.php)
 * [Ruby on Rails - Desenv. Ágil para Web com Ruby on Rails](http://www.caelum.com.br/apostila-ruby-on-rails/)
 * [Tutorial de Ruby](http://dl.dropbox.com/u/1482800/eustaquiorangel.com/tutorialruby.pdf)
+* [Conhecendo Ruby](http://howtocode.com.br/ebooks/ruby)