There are 5 books in the Mean Girls: The Teenage Years series.
The Mean Girls: The Teenage Years series does not have a new book coming out soon. The latest book, The Mask (Book 5), was published in June 2021.
The first book in the Mean Girls: The Teenage Years series, Hello High School, was published in June 2020.
The Mean Girls: The Teenage Years series primarily falls into the General Fiction genre. This young adult series was written for ages 12-17, but can be enjoyed by adults too.