Annemarie Young is a writer of fiction and non-fiction for children, and an editorial consultant for children's books and primary education. She was a publisher for many years and has worked with hundreds of children's authors and illustrators. She has lived and travelled all over the world, from Australia to Southeast Asia, Egypt and Europe, and she now lives in Cambridge.

Michael Rosen is one of the most popular authors for children. His bestselling titles published by Walker Books include We're Going on a Bear Hunt, A Great Big Cuddle, Little Rabbit Foo Foo, Michael Rosen’s Sad Book, Tiny Little Fly and What Is Poetry?.

Michael received the Eleanor Farjeon Award for distinguished services to children’s literature in 1997, and was the Children’s Laureate from 2007 to 2009. He is a distinguished critic and academic, Professor of Children's Literature at Goldsmiths, University of London.

He also presents radio programmes for the BBC, and is a political commentator. Michael lives in London.