Free Book: Abhidhamma Lessons PDF Abhidhamma Lessons Here is a book I wrote long ago that relates the Abhidhamma to Computer Science. As a programmer from the nineties, I “clicked” with the abhidhamma after reading just a small amount. When I learned that the mind does only one thing at a time, it instantly clicked with a graduate class I had taken on digital circuits. It gave me the faith in the Abhidhamma early on which is very rare among Western Monks and Western Theravada Buddhist lay people.