Ros Asquith has been a Guardian cartoonist for 20 years, and has written and illustrated over 60 books for young people, including the international bestseller, The Great Big Book of Families, with Mary Hoffman, and the Alien Schoolboy and Teenage Worrier series. She graduated from Camberwell School of Art, working as a photographer, designer, and teacher before becoming a theatre critic for Time Out and the Observer, and diary writer for the TV Times. Her work also includes The Roman Beanfeast and The Skiver's Guide. She has two sons and lives in north London.