The Babysitters Club is a popular children's book series created by Ann M. Martin. It follows a group of middle school girls who start a babysitting business in their hometown of Stoneybrook, Connecticut. Each book typically focuses on the experiences and challenges faced by the girls as they manage their babysitting jobs and navigate friendships. The series features main characters like Kristy Thomas, Mary Anne Spier, Claudia Kishi, and Stacey McGill. Over the years, the books have been adapted into various formats, including a television series and graphic novels, making them accessible to new generations of readers.