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.

Judi Abbot was born in Italy but now lives in London. She studied Illustration at art school in Milan. She usually works with acrylics, collage, and color pencils. As well as illustrating, Judi plans and organizes creative workshops for children.