Francesca Simon is a British author best known for her popular children's book series, Horrid Henry. Born on February 23, 1955, in St. Paul, Minnesota, she moved to London as a child. Simon's writing often features humor and relatable characters, making her stories appealing to young readers. In addition to the Horrid Henry series, Simon has written numerous other books, including picture books and novels for older children. Her work has received several awards and has been translated into multiple languages, helping to establish her as a prominent figure in children's literature.