Andy Stanton has written eight books about Mr Gum, along with further successful fiction and picture book titles. He was overall winner of the Red House Children's Book Award in 2007 for You're a Bad Man, Mr Gum! and in 2008 won the inaugural Roald Dahl Funny Prize for Mr Gum and the Dancing Bear. He has twice won the Blue Peter Book Award for Best Book With Pictures, and been shortlisted for a host of other awards.

David Litchfield first started to draw when he was very young, creating comics for his older brother and sister. Since then his work has appeared in magazines, newspapers, books and on T-shirts. David's first picture book The Bear and the Piano won the Waterstones Children's Book Prize. He lives in Bedfordshire.