Tim Dedopulos is an author, puzzle setter and editor who lives in Spain. He has written numerous puzzle books for Mensa, as well as the successful Sherlock Puzzles series and many other titles.Mensa is the largest and oldest high IQ society in the world. It is a non-profit organization open to people who score at the 98th percentile or higher on a standardized, supervised IQ or other approved intelligence test.

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• This book consists of 200 difficult puzzles of a variety of different types focussing on pattern puzzles of all types. Questions include mathematical and alphabetical ciphers, as well as shape and geometric patterns. Puzzle artworks and full-colour illustrations are included throughout.