Dr Gareth MooreDr Gareth Moore is the internationally bestselling author of a wide range of brain-training and puzzle books for both children and adults, including The Ordnance Survey Puzzle Book, The Whodunnit Puzzle Book, Anti-stress Puzzls, The RHS Gardners Quiz and Puzzle Book, Brain Games for Clever Kids®, Lateral Logic and Extreme Mazes. 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. Read More Read Less