Whether you are intrigued, embarrassed, or just plain scared by the complexities of mathematics, this is a book which will both delight and infuriate you. Culled from the pages of Scientific American, these puzzles, problems, and paradoxes, with names like Hexaflexagons, Polyominoes, and the Icosian Game, are the work of a master and the best of their kind. But a word of warning. This beguiling collection has been specially designed to seduce you for hours, days, weeks, from the duller business of practical life. Be on your guard!