Amy Hest is the author of many much-loved and bestselling picture books, including Kiss Good Night, Sam, illustrated by Anita Jeram, and Charley's First Night and When Charley Met Granpa, illustrated by Helen Oxenbury. She is a three-time winner of the prestigious Christopher Medal. Amy lives in New York City, USA. Find her online at www.amyhest.com. Polly Dunbar is the author-illustrator of Arthur’s Dream Boat and the bestselling picture book Penguin, winner of numerous awards including the Book Trust Early Years Award and the Red House Children's Book of the Year Award. She is also the illustrator of My Dad’s a Birdman, by David Almond, and Shoe Baby and Pat-a-Cake Baby, both written by her mother, Joyce Dunbar. Her collection of titles beginning with Hello Tilly was made into an animated series, Tilly and Friends, as seen on Cbeebies. She is the co-founder of Long Nose Puppets, a children’s theatre company. Polly lives in Beccles, Sussex. Find her online at www.pollydunbar.com and on Twitter as @PollyDunbar.