Ros Asquith has been a Guardian cartoonist for 20 years, and has written and illustrated over 70 books for young people, including the bestseller The Great Big Book of Families, with Mary Hoffman, the Teenage Worrier series, Letters from an Alien Schoolboy-which was shortlisted for the Roald Dahl Funny Prize- and her debut picture story book It's Not Fairy. Ros lives in north London with her husband and two sons. For more information about Ros, visit her website: www.rosasquith.co.uk