Zadeh meticulously analyzes numerous variables in Jackpots; openings, opponents' games, pot odds, position, number of players, folding, antes, calling, raising (before and after the draw), bluffing on one or two levels. Other games -- Lowball, Stud, High-Low, and High-Low Draw are examined along similar lines. The catch here is memorization: the book is replete with mathematical possibilities, charts of minimum hands for opening, calling, etc. (depending on position). For those who have both patience and energy -- it will take both.