Sarah Coyle is a children's author and actress who started writing for children after becoming a mum. She is the author of The Biggest Story and Once You're Sleepingas well as the other fun-packed books in the Pick a Story series. She lives in Bath with her family.

Adam Walker-Parker began his creative career painting fine art. He published his first children's book in 2015, and has since published over 20 titles. He lives with his family in the beautiful Highlands of Scotland, which provide endless inspiration for his work.