Sophie grew up in a family of artists and musicians in the English countryside. She has illustrated many picture books and was shortlisted for the Kate Greenaway Medal for Unicorns! Unicorns! by Geraldine McCaughrean.
She lives in Herefordshire with her husband, the film director and writer, Bruce Robinson, with whom she has collaborated on the picture books The Obvious Elephant and Harold and the Duck. They have two children and an ever increasing number of animals, including hens, ducks and a donkey.