Pick a number, any number, and The Book of Numbers will let you in on all its secrets. You'll be amazed at just how exciting numbers can be...From zero to infinity, this handy hardback is the ultimate number reference guide which explores the mathematical significance and cultural associations of over 130 numbers. Discover how a pack of playing cards came to have 52 cards, why 7 is the 'magic number', or why 1.618 is known as the 'golden number'. Our lives are ruled by numbers and this book tells you about every one that counts.