Items in martin-fowler 2024 Self-Study in July 2024 Jul 1 2018 Self-Study in June 2018 Jun 1 2016 Self-Study in June 2016 Jun 1 2016 Self-Study in May 2016 May 1 2016 Self-Study in April 2016 Apr 1 2016 Self-Study in March 2016 Mar 2 2015 Self-Study in December 2015 Dec 2 2015 Self-Study in September 2015 Sep 1 2015 Practical Object-Oriented Design in Ruby: Chapter 2 Jul 12 2015 Self-study in July 2015 Jul 1