Forwarded by Johnny Ball and highly recommended reading in the DK easy to view format.
This book was recommended to me by the man himself, yes Johnny Ball!!!
I was on a maths course and the guest speaker was the man himself. I even went up to the front to give him a hand in true "think of a number" style.
This book is recommended reading in all American Primary schools (so said JB) and it is well worth buying. I purchased it for myself and my children when they are a bit older. (I'm going to stick in my picture of JB and me!!!LEGEND)
Cracking book also: well worth the money.
It has the history of number, puzzles and all you need to know about number and maths.