This classroom-tested book illustrates both standard and advanced probability topics using Texas Hold’em, rather than the typical balls in urns. It covers basic probability rules, standard models for describing collections of data, and the laws of large numbers as well as more advanced topics, such as the arcsine law and random walks. The author includes examples of actual hands of Texas Hold’em from the World Series of Poker and other major tournaments. A dedicated R package that simulates hands and tournaments is freely available from CRAN.