Berlie Doherty is an English novelist, poet, playwright and screenwriter. She is best known for children's books, for which she has twice won the Carnegie Medal.
Jason Cockcroft is an illustrator . He attended the Falmouth School of Art, and won the Blue Peter Award for his work on Geraldine McCaughrean's retelling of 'Pilgrim's Progress.' He is best known for his internationally acclaimed picture book illustrations, specifically for his cover artwork for the final three Harry Potter books.