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.

Deborah Allwright has become a star of the picture book world following the publication of the bestselling The Night Pirates.

She has been shortlisted for the V&A Illustration Award, and illustrated the hugely successful Don 't Read this Book!

Deborah works in a studio in Islington, stopping only to attend designer clothes sales, and to do a spot of DJing at music festivals.