Many of his books have won illustration awards including the UNESCO Prize, the Greenaway Medal (on three occasions) and the Hay Festival Medal for Illustration. As an author his work includes the highly-acclaimed Ottoline titles and the 2013 Costa Children’s Book Award-winning Goth Girl and the Ghost of a Mouse. Chris has also achieved global success through his New York Times best-selling collaboration on The Edge Chronicles with Paul Stewart and through his illustrated works with other high-profile figures including Michael Rosen.