Fun with Mathematics Author:Jerome S. Meyer "...literally a gold mine of fun and information. Through it, Jerome Meyer provides a fascinating and amazing key to the mysteries and magic world of numbers. You will find it one of the most readable books on mathematics ever published."
Fun? Yes, it is! Fun trivia; simple and insightful; reasoning puzzles and math contortions; interesting commentary and background on theories and personalities over the centuries. A good companion volume might be John Allen Paulos' 1988 "Innumeracy."