diff --git a/free-programming-books.md b/free-programming-books.md index 29af14e7..927b6807 100644 --- a/free-programming-books.md +++ b/free-programming-books.md @@ -1435,6 +1435,7 @@ See also [TeX](#tex) * [Learn Ruby the hard way](http://ruby.learncodethehardway.org/book/) * [Learn to Program, by Chris Pine](http://pine.fm/LearnToProgram/) * [Mr. Neighborly's Humble Little Ruby Book](http://www.humblelittlerubybook.com/) +* [Practicing Ruby](https://github.com/elm-city-craftworks/practicing-ruby-manuscripts) * [Programming Ruby](http://www.ruby-doc.org/docs/ProgrammingRuby/) * [Ruby Essentials](http://www.techotopia.com/index.php/Ruby_Essentials) * [Ruby Hacking Guide](http://ruby-hacking-guide.github.io/)