Michael Rosen is one of the best-known figures in the children's book world. He is renowned for his work as a poet, performer, broadcaster and scriptwriter. He visits schools with his one-man show to enthuse children with his passion for books and poetry. In 2007 he was appointed Children's Laureate, a role which he held until 2009. While Laureate, he set up The Roald Dahl Funny Prize. He currently lives in London with his wife and children.

Tony Ross has illustrated over 800 books, which are published all over the world. Dr Xargle's Book of Earth Tiggers was shortlisted for the Kate Greenaway Medal and Tadpole's Promise won the Silver Medal in the Smarties Prize 2003. He was the British choice for the Andersen Medal 2004. The Nanny Goat's Kid was shortlisted for the Roald Dahl Funny Prize 2010. He lives on the Welsh border.