Claire Freedman is the author of several picture books, including Pirates Love Underpants!; Dinosaurs Love Underpants!; Aliens Love Underpants!; Snuggle Up, Sleepy Ones; One Magical Day; A Magical Christmas; Dilly Duckling, and My Grandparents Love Me. She lives in Essex, England.
Russell Ayto earned his degree in graphics at Exeter College of Art and Design in England. He has illustrated several award-winning picture books, such as The Witch's Children and the Queen by Ursula Jones, which won the Gold Smarties Prize in 2003, and Quacky Quack-Quack! by Ian Whybrow. Russell lives with his wife and three children in Penzance, England.