For anyone who loves the challenge of Su Doku but manages to solve them within minutes, you can now enjoy the extended mental workout and ultimate endurance test of a five grid interlinked system.

The Times Crossword is the most famous in the world. Test your word power with this classic collection of 100 cryptic puzzles compiled by the Editor of The Times Crossword.

The latest volume in the hugely popular Killer Su Doku series from The Times, featuring the highest-quality puzzles with an extra element of arithmetic.

Previously unpublished quality Su Doku grids from The Times, which help develop your skills to take on Extreme Su Doku.

A bumper quiz book, with all new questions to test your general knowledge, with more than 500 up-to-date quizzes and around 10,000 questions. Includes 30 picture rounds to get you scratching your head!

Discover the treasures and pleasures of our natural world with 52 fun activities following the seasons.

Filled with crafts, gardening, games, art and science activities for children aged 7 years and up that are budget-friendly and will entertain all year round.

'The perfect Christmas gift' - Alan Brazil

A brilliantly entertaining and hilarious quiz book from the country's favourite sports broadcaster