DAVID J. BODYCOMBE

This new collection of classic puzzles will examine the most fascinating stories behind the world's most popular varieties of brainteasers. Why are they so popular, who are the people that have developed them, and where have they come from? Skipping from Lewis Carroll's word ladders to how the Times crossword won World War Two, The Riddles of the Sphinx is the perfect book for anyone who likes a brain teaser.

Here is Penguin's volume of Sudoku puzzles: the logic game that has taken the world by storm. Pocket Penguin Sudoku contains 201 fiendish brainteasers, ranging from easy to mind-bogglingly difficult. It provides a daily fix for the hardened Sudoku fan and sets an addictive challenge for novices. It's more than a game. Sudoku is good for you: it builds your concentration, hones your logic and improves your deduction skills.

This is Penguin's second bumper volume of Sudoku puzzles, the world's current favourite numbers game. With 200 brand-new classic puzzles star rated from gentle to hot to brain-melting, and another 150 different kinds of Sudoku, large and small, there's enough to tempt the most puzzle-jaded palate. Penguin Holiday Sudoku is the ideal travelling companion for the hardened Sudoku fan and naive novice alike - perfect for passing time in the airport or on the beach. Don't leave home without it.