Hiawyn Oram has been writing children's books for more than 20 years and has more than 90 books published to date, including the picture books Angry Arthur, The Good Mood Hunt and Filbert, the Good Little Fiend, illustrated by Jimmy Liao.

She has won the Japanese Picture Book Award and the Prix du Livre Culturel. She lives in West London.

Satoshi Kitamura won the Mother Goose Award for the most exciting newcomer to children's book illustration for Angry Arthur.

His books for Walker include The Carnival of the Animals, Stone Age Boy and Pumpkin Grumpkin edited by John Agard and Grace Nichols. Satoshi lives in Japan.