Kes Gray is the bestselling author of the OI FROG AND FRIENDS series of books that has sold over 1.5 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.

Nick East is the illustrator of the bestselling TOTO THE NINJA CAT series, written by Dermot O'Leary. He is also the illustrator of Michelle Robinson's popular GOODNIGHT . . . series. He worked for many years as a museum designer but has always been a storyteller whether, as a child, filling sketchbooks with quirky characters or, as a designer, displaying a collection of ancient artefacts. Nick is based in York.