Neil Gaiman has written highly acclaimed books for both children and adults and is the first author to have won both the Carnegie and Newbery Medals for the same work - The Graveyard Book. Many of his books, including Coraline and Stardust, have been made into films; Neverwhere has been adapted for TV and radio; and American Gods and Good Omens have been adapted into major TV series. He has also written two episodes of Doctor Who and appeared in The Simpsons as himself.

Chris Riddell is a much loved illustrator and acclaimed political cartoonist. He has won the Costa Children's Book Award, the Nestlé Gold Award is the only artist to have won the Kate Greenaway Medal three times, most recently for his illustrations in The Sleeper and the Spindle. He was Waterstones Children's Laureate from 2015 to 2017 and has illustrated the work of many celebrated children's authors, including five Neil Gaiman titles and J.K. Rowling's The Tales of Beedle the Bard. He is the author of the bestselling Goth Girl and Ottoline series and co-creator of The Edge Chronicles.