Matt Haig is the number one bestselling author of Reasons to Stay Alive and seven other highly acclaimed books for adults, including How to Stop Time, a Sunday Times bestseller, and The Humans. His work has been published in forty languages. @matthaig1 matthaig.com
Illustrator Chris Riddell is a Costa prize-winning illustrator, author and former Children's Laureate. He has worked as a political cartoonist for the Economist, the Independent and the Observer. He has illustrated an exceptional range of books and also writes and creates his own books, such as the highly-acclaimed Ottoline series and the Costa prize-winning Goth Girl series. @chrisriddell50 chrisriddell.co.uk