What has the author Ann Mary Pilcher written?

You are likely thinking of Ann M. Martin, not Ann Mary Pilcher. Ann M. Martin is a popular American author best known for her children's series "The Baby-Sitters Club".

She has written many other books for children and young adults, including:

* "The Baby-Sitters Club" series (over 130 books)

* "The Baby-Sitters Club" graphic novel series

* "The Main Street" series

* "A Corner of the Universe"

* "P.S. Longer Letter Later"

* "Here's to You, Rachel Robinson"

* "The Babysitter's Club: Super Special Edition" series

There is no known author named Ann Mary Pilcher. If you're thinking of someone else, please provide more information.