Maths - for decades thought obscure, dusty and irrelevant - is now hip and trendy. Who'd have predicted that? Well, mathematicians, obviously, using probability theory and algorithms and all that stuff. The Bluffer's Guide to Maths will show aspiring mathematicians how to solve imponderable problems such as dividing a dinner bill into seven (two diners not drinking, three with tiramisu) to how to explain the world's greatest mathematical conundrums in three easy pieces.