Think of a Number Author:Johnny Ball Maths isn't just about sums and calculations, number can take you anywhere. With "Think of a Number" you'll explore a fantastic world of wonder that is full of surprises. Join Johnny Ball on a dazzling adventure to infinity and beyond - crack codes, unravel mazes and discover why finding a prime number could make you a millionaire. Test your fri... more »ends with magic tricks and mind-reading techniques and find out about the simple puzzles that stumped the world's brainiest mathematicians for centuries. Think maths is boring? Think again!« less