Mark Sperring studied at Bath Academy of Art and Camberwell College of Art before working as a printer and a bookseller, and later becoming a children's book author.

Mark is the author of The Shape of My Heart (Bloomsbury), Captain Buckleboots on the Naughty Step (Puffin) and The Sunflower Sword (Andersen). He lives in Bristol.

Sophie Corrigan is a freelance illustrator and author from Lancashire, UK. She has illustrated many diverse items from books to calendars to T-shirts and more!

When not illustrating and maintaining her online art shops, Sophie spends the spare time she has going to shows, watching nature programs, eating vegetarian food, hanging out with her pet cockatiels, and occasionally crafting cute things from wool and clay.