The Baby-Sitters Club by Ann M. Martin
The Baby-Sitter Club is about a group of middle school students who run a business called the Baby-sitters Club. The series starts with four members (Kristy, Mary Anne, Claudia & Stacey) but expands to include 10 members. The books follow their business ventures, their friendships and conflicts
There are 216 books in the series:
- 131 titles in the regular series
- 15 Super Specials
- 36 Mysteries
- 4 Super Mysteries
- 3 Super Edition Reader Requests
- 6 Portrait Collections
- 12 Friends Forever
- 2 Friends Forever Super Specials
- 7 Extra books (BSC Guide to Baby-sitting, The BSC Notebook, Secret Santa, BSC Chain Letter, The Baby-sitters Club Trivia & Puzzle Fun Book, The Baby-sitters Club Postcard Book & The Complete Guide to the Baby-sitters Club)
In 2006 Scholastic released 4 graphic novel versions of the series
The Baby-Sitter Club series was published by Scholastic between 1986 and 2000 and is currently out of print. Some titles are hard increasingly hard to source second hand due to smaller print runs.

