Amy Hest is the author of many much-loved and bestselling picture books, including Kiss Good Night, illustrated by Anita Jeram,and Charley's First Night and When Charley Met Granpa, illustrated by Helen Oxenbury.

Helen Oxenbury is among the most popular and critically acclaimed illustrators of her time. Her numerous books for children include Smarties Book Prize-winning Farmer Duck by Martin Waddell; We're Going on a Bear Hunt by Michael Rosen; as well as her classic board books for babies.

She won the Kate Greenaway Medal for Alice's Adventures in Wonderland. Her most recent picture book was the critically acclaimed There's Going to Be a Baby, the first book-publishing collaboration between her and her husband John Burningham. Helen lives in London.