Matt Haig is the internationally bestselling author of the novels The Midnight Library, How to Stop Time, The Humans, The Radleys, children's novel A Boy Called Christmas, and memoir Reasons to Stay Alive.

His latest novel is The Life Impossible, which will be published in September 2024. His work has been translated into over fifty languages.

Chris Mould was born in Bradford, England, and has lived and worked there all his life. He began drawing at a very early age and hasn't stopped since. He trained in art college for six years altogether starting in Dewsbury College and moving to Leeds, during which time he gained a joint honours degree in graphic design and illustration.