Jonny Marx is a book editor and bibliophile. He grew up in Stamford and has commissioned and edited more than 50 titles and worked with dozens of talented illustrators and authors along the way. He is the author behind 'The Book of Beasts' series. Jonny lives in London. Dr Gareth Moore (B.Sc (Hons) M.Phil Ph.D) is the internationally best-selling 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 and Extreme Mazes. His books have sold over a million copies in the UK alone, and have been published in 29 different languages. He is also the creator of online brain-training site BrainedUp.com, and runs the daily puzzle site PuzzleMix.com.