Ann M. Martin grew up in Princeton, New Jersey. After attending Smith College, where she studied education and psychology, she became a teacher at a small elementary school in Connecticut. Martin also worked as an editor of children's books before she began writing full time. Martin is best known for the Baby-Sitters Club series, which has sold over one hundred seventy million copies. Her novel A Corner of the Universe won a Newbery Honor in 2003. In 1990, she cofounded the Lisa Libraries, which donates new children's books to organizations in underserved areas. Martin lives in upstate New York with her three cats.