Marion Billet was born in 1982 in Lyon, France. She studied children's book illustration at the Emile Cohl School. Marion is widely published, around eighty children's books in eleven different countries, including the Whizzy Wheels series as well as Busy Bookshop, Busy London, a push, pull and slide book of London landmarks, and many more board books for Campbell. Her illustrations have also appeared in magazines, on stationery and toys, and on children's furniture and clothes. Marion currently lives in Los Angeles.