RT @FunctorFact: Overview of the book from the author: https://t.co/4ynRYT2Vy3 https://t.co/pXqCYThAYC

Overview of the book from the author:https://t.co/4ynRYT2Vy3
https://t.co/pXqCYThAYC

— Functor Fact (@FunctorFact) November 17, 2016