How many books has ann m martin wrote?

Ann M. Martin has written more than 50 books, including picture books, chapter books, and novels. Some of her most well-known works include:

* "The Babysitters Club" series (131 books)

* "Nancy Drew and the Clue Crew" series (6 books)

* "Dear America" series (6 books)

* "The Doll People" series (6 books)

* "The Baby-sitters Little Sister" series (11 books)

* "Katie Kazoo, Switcheroo" series (6 books)

* "Melody" (3 books)

* "Rain Reign"

In addition to her books for children, Martin has also written several adult novels and short stories.