Michael Rosen is a poet and the author of many books for children, including We're Going on a Bear Hunt, illustrated by Helen Oxenbury, which won the Nestlé Smarties Children's Book Prize; A Great Big Cuddle, illustrated by Chris Riddell; and Michael Rosen's Sad Book, illustrated by Quentin Blake. He received the Eleanor Farjeon Award for services to children's literature in 1997 and served as Children's Laureate in the UK between 2007 and 2009. Michael Rosen lives in London.

Neal Layton has illustrated more than eighty books for children. His books have won the UK's prestigious Nestlé Smarties Children's Book Prize and been short-listed for many other awards. He lives in England.