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. Simon Abbott (Author) Artist and designer Simon Abbott has been illustrating children's books, games and stationery for over 15 years. He specialises in bold colours and delightful characters of all kinds and describes his work as fun, fresh and happy. His easy style has instant appeal and helps to communicate complex ideas and concepts in a flash. Whether he is drawing playground fun, astronauts, dinosaurs or monkeys swinging through trees, his art is always engaging and is guaranteed to make children smile. Simon lives and works in Suffolk, UK, with his partner and their 3 boys. When he hasn’t got a pen or paintbrush in his hand, he enjoys music, festivals, running and ice-cream.