I downloaded the book and found the section that was 'borrowed' from one of the things I made, which was borrowed from this thing:
http://pix3m.deviantart.com/art/Ref-Game-perspectives-366577828This book borrowed from a simple list of game perspectives that I made because I was working with people who weren't that sure of what they were doing. We were throwing terms around for game perspectives, but none of us knew what we were talking about. Some perspectives are named after games because we only have so many terms to throw around. I made a list of perspectives, made cubes to get the point across, and made short pro and cons because some people I was working with, have NEVER EVER DONE GAME TILES BEFORE. Squares are easy. Foreshortened, rotated squares need some basic drawing skills but is still easy. Parallelograms and trapezoids are harder.
I have to say, it is odd to see some of the simplicity of that list being jammed into a commercialized book which if you ask me personally, could have been done much more skillfully