In the first volume of this series, Harrington on Hold 'em: Volume I: Strategic Play, Dan Harrington explained the basics of the game, and how to play in the early stages of tournaments, where the players have deep stacks and the blinds and antes are small. In the second volume, Harrington on Hold 'em: Volume II: The Endgame, he explained how to play the later stages of tournaments, when the prize money was within sight. In this book, Dan gives you problems to test how well you grasped the principles of the first two volumes. In addition, many of the problems focus on the key area that causes difficulties for so many aspiring players: how to play after the flop.

Dan Harrington began playing poker professionally in 1982. On the circuit he is known as Action Dan, an ironic reference to his solid but effective style. He has won several major no-limit hold'em tournaments including the European Poker Championships (1995), the $2,500 No-Limit Hold'em event at the 1995 World Series of Poker, and the Four Queens No-Limit Hold em Championship (1996). He has played in the No-Limit Hold'em World Series a total of 15 times and has reached the final table in four of those tournaments. Besides winning the World Championship in 1995, he finished sixth in 1987, third in 2003, and fourth in 2004. In 2006 he finished second at the Doyle Brunson North American Championships at the Bellagio, while in 2007 he won the Legends of Poker tournament at the Bicycle Club. He is widely recognized as one of the greatest and most respected no-limit hold em players, as well as a feared opponent in both no-limit and limit hold'em side games.

Bill Robertie has spent his life playing and writing about chess, backgammon, and now poker. While attending Harvard as an undergraduate, he became a chess master and helped the Harvard chess team win several intercollegiate titles. After graduation, he won a number of chess tournaments, including the United States Championship at speed chess in 1970. In 1976 he switched from chess to backgammon, becoming one of the top players in the world. His major titles include the World Championship in Monte Carlo in 1983 and 1987, the Black & White Championship in Boston in 1979, the Las Vegas tournaments in 1980 and 2001, the Bahamas Pro-Am in 1993, and the Istanbul World Open in 1994.