Improve Your Chess: Teach Yourself

Brilliant Chess: Flash

A Brief History of Puzzles: 120 of the World's Most Baffling Brainteasers from the Sphinx to Sudoku

Knock, Knock: In Pursuit of a Grand Unified Theory of Humour

The Things that Nobody Knows: 501 Mysteries of Life, the Universe and Everything

Sloths: A Celebration of the World's Most Misunderstood Mammal

The Bumper Book of Things That Nobody Knows: 1001 Mysteries of Life, the Universe and Everything

Even More Things That Nobody Knows: 501 Further Mysteries of Life, the Universe and Everything

Numb and Number: How to Avoid Being Mystified by the Mathematics of Modern Life