The history of mathematics is filled with major breakthroughs resulting from solutions to recreational problems. Problems of interest to gamblers led to the modern theory of probability, for example, and surreal numbers were inspired by the game of Go. Yet even with such groundbreaking findings and a wealth of popular-level books exploring puzzles "Beineke and Rosenhouse have compiled and edited a fantastic collection of essays dealing with popular mathematics. . . . Anybody who enjoys reading about recreation mathematics should definitely explore these writings."