Items in analogy 2021 Self-Study in January 2021 Jan 1 2019 Self-Study in September 2019 Sep 1 2019 Self-Study in March 2019 Mar 1 2018 Self-Study in July 2018 Jul 1 2017 Self-Study in August 2017 Aug 1 2017 Self-Study in March 2017 Mar 1 2016 Self-Study in December 2016 Dec 1 2016 Self-Study in July 2016 Jul 4 2016 Self-Study in March 2016 Mar 2 2016 Self-Study in February 2016 Feb 1 2016 Self-Study in January 2016 Jan 1 2015 Self-Study in December 2015 Dec 2 2015 Self-Study in September 2015 Sep 1 2015 Craftsmanship analogy Jul 27 2015 Practical Object-Oriented Design in Ruby: Chapter 4 Jul 26 2015 Self-study in July 2015 Jul 1 2015 Talk: Software is eating the world May 10 2015 The Guardian of the Source Apr 17