Sarah Stewart is an American author known for her children's books. She has written several popular titles, including The Library and The Friend. Her stories often feature themes of friendship, adventure, and the importance of community. In addition to her writing, Sarah Stewart is also recognized for her collaboration with illustrator David Small. Together, they have created visually engaging books that appeal to young readers. Stewart's work has received numerous awards and accolades, making her a respected figure in children's literature.