Gareth Moore (Author) Dr Gareth Moore (B.Sc (Hons) M.Phil Ph.D) is the internationally bestselling author of a wide range of brain-training and puzzle books for both children and adults, including Anti-stress Puzzles , Ultimate Dot to Dot , Brain Games for Clever Kids ®, Lateral Logic , Extreme Mazes and The Ordnance Survey Puzzle Book. His books are available in over 40 countries, with worldwide sales of over 5 million copies. He is also the creator of online brain-training site BrainedUp.com and runs the daily puzzle site PuzzleMix.com.

Laura Jayne Ayres (Author) Laura Jayne Ayres is a puzzle writer and researcher.After studying Linguistics at the University ofCambridge, she worked as a playwright before joiningDr Gareth Moore's puzzle team. Books that she hasworked on include Hacked: The Cyber Crime Puzzle Book , The Great British Puzzle Book , The Perfect Crime PuzzleBook , The Nautical Puzzle Book and The Ordnance SurveyKids' Adventure Book .