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 Ordinance Survey Puzzle Book. His books have sold over a million copies in the UK alone and have sold in 35 different languages. 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.