This is a kickstarter project, and JM Perkins has been horribly late in just about every way. It sucks because it is a cool concept and whats there is pretty good, but it is not worth it. I gave the guy $50 and feel cheated. He has missed just about every deadline he set for himself and rarely updates his backers who game him $50k+.
This book was supposed to come out in May 2017.