Charlotte Hudson taught at primary schools for several years both in England and abroad before turning her hand to picture book writing. She is the author of Dan and Diesel, Monkey Words, illustrated by Greg Gormley, and Who Will Sing My Puff-a-bye?, also illustrated by Mary McQuillan. Mary McQuillan is a talented young illustrator who has previously collaborated with Charlotte Hudson on Who Will Sing My Puff-a-Bye? She is also the illustrator of Our Twitchy and Who's Poorly Too? (winner of the Sheffield Picture Book Award) both by Kes Gray, and Squeaky Clean by Simon Puttock. Her illustrations have also appeared in poetry collections, on greetings cards and wallpaper designs.