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.

Claire is an illustrator, writer and designer who lives and works in London. She has spent several years as a design director in the world of channel rebranding working for clients such as Nickelodeon, BBC Three, CBBC and BBC One. Claire has a tendency towards humour and bright, bold use of colour and she loves creating strong typographical layouts to help tell a story.