Kes Gray is the bestselling author of the OI FROG AND FRIENDS series of books that has sold over 3 million copies and has been adapted into a theatre show. He is a multi-award-winning author with over 70 books published. He eats Ideaflakes for breakfast, spreads silliness on his toast and loves to write books that will make children laugh out loud. He has won the Sainsbury's Children's Book Award and the Laugh Out Loud Book Award and has been shortlisted for the British Book Awards. Kes is based in Essex.

David Tazzyman is an award-wining illustrator from Leicestershire, England, UK, who wanted to be an artist since the age of five. David graduated from Manchester Metropolitan University in 1993 and worked as a commercial illustrator before falling into children's publishing in 2006, illustrating Andy Stanton's Mr Gum series, which won the first Roald Dahl Funny Prize in 2008. David now mainly illustrates children's picture and fiction books and lives in Leicestershire with his partner and 3 children. He likes football, cricket, golf and biscuits.