Sarah Khan has been a children's writer and editor for 12 years. After graduating from Cambridge University, UK with a degree in English literature, she worked for Usborne Publishing Ltd., where she created a highly successful series of puzzle books. The author of a weekly children's puzzle section in The Daily Telegraph, she lives in Cambridge, UK. Joelle Dreidemy has drawn and painted for as long as she can remember. After graduating from the prestigious Emile Cohl School she moved to Paris, where she now illustrates for English, American, French, and Korean publishers.