Jason Cockcroft was born in New Zealand and raised in Leeds, England. He is best known for his internationally acclaimed picture book illustrations and for his cover artwork for the final three Harry Potter books.
During his time at Falmouth School of Art he entered the Macmillan Prize for Children's Illustration, winning a place in the final exhibition where his work was noticed by publishers and agents.
He won the Blue Peter Award for his work on Geraldine McCaughrean’s retelling of 'Pilgrim's Progress', and has been nominated for the Kate Greenaway award. He is also an accomplished watercolour artist and portrait painter. His work has been exhibited in Birmingham, Manchester, Leeds and London.