Matt Haig is the number one bestselling author of Reasons to Stay Alive and Notes on a Nervous Planet and six highly acclaimed novels for adults, including How to Stop Time, The Humans and The Radleys. He has also written many books for children and has won the Blue Peter Book Award, the Smarties Book Prize and been nominated three times for the Carnegie Medal. He has sold more than a million books in the UK and his work has been translated into over forty languages.

EMILY GRAVETT is an award-winning writer and illustrator who has won two CILIP Kate Greenaway Medals. She lives in Brighton with her family and their two dogs.