W Foulsham & Co Ltd., 2004. — 88 p.
In this 88-page book Marx discusses poker concepts like perceived strength, points of honesty, continuation bet, ranges and bet sizes, playing different types of flops, and 3betting. The author uses both written text and videos for these discussions. The Poker puzzle also contains lots of questions which aren't answered in the book, such that the reader really is put to work.