For the serious player who can handle college-level math, Griffins classic includes definition and analysis of basic strategy, approximating bet and strategy variation, single parameter counting systems, multi-parameter counting systems, the importance of grouping cards, insurance, distribution of probability, likely consequences of errors in counting systems, and betting gain in two-four decks. This is one of the most important books on blackjack with charts, tables and formulae for almost every variation. Revised 270 Pgs.1999