Dr Joanna Nadin is a British author who writes children's and adult literary fiction. She is best known for Joe All Alone, which was nominated for the Carnegie Medal, and the Rachel Riley series of novels. The Rachel Riley series, which draws on Nadin's own childhood experiences, follows a 13-year-old girl growing up in Saffron Walden, Essex. The books are narrated from the protagonist's perspective and are known for their comedic tone.