The Fabulous Fibonacci Numbers by Alfred S. Posamentier and Ingmar Lehmann. 2007, ISBN 978-1-59102-475-0.
This book discusses the Fibonacci numbers. It gives some of their history and many of the areas of mathematics and science that are touched by this number series. Also, discusses the Lucas numbers and the Golden Ratio. If you enjoy mathematics and numbers then you'll love this book. My only complaint is that the proofs of some of the statements were placed in an appendix instead of inline with the statements. Purchased 10-30-2007 at Powell's, for $28.