Charlotte Guillain taught English to air traffic controllers and nurses before deciding a career in publishing would endanger fewer lives.

They have written several picture books together including Supermarket Gremlins, School for Dads and the George's Amazing Adventures series.

Clare Elsom is a children's illustrator and author. She is the creator of young fiction series Horace & Harriet, a highly illustrated series published by Oxford University Press.

Clare has also illustrated dozens of popular children's books, including the best-selling Flying Fergus series written by Olympic champion Sir Chris Hoy, and Joanna Nadin. Clare Elsom is based in Devon, UK.