"The It Girl" is a young adult novel by Cecily Von Ziegesar, and details Jenny Humphrey's first week at an elite New York boarding school, Waverly Academy.

Formerly a student of Constance Billard, Jenny Humphrey travels to upstate New York to attend the elite boarding school, the Waverly Academy. Jenny has left behind her life in New York after a publicity scandal involving her brother's old band, the Rave. The media speculates that Jenny has slept with every member of the band, including her own brother. Jenny decides that her studies at her new school will be in pursuit of a new life.

At Waverly, Jenny's physical good looks attract many of the boys, among them, Heath, Brandon, and Easy. Jenny rooms with two girls, Callie and Brett, both of whom blame the other for the expulsion of their previous roommate, Tinsley. Brett begins an affair with a new teacher, just as Callie and Easy hit the rocks, because Callie is controlling and Easy has a crush on Jenny. Jenny is selected for the varsity team for field hockey. She successfully turns around a practical joke on the team, giving her instant celebrity and popularity. Callie and Brett both later learn that neither of them had anything to do with Tinsley being expelled, and the book ends with the announcement that Tinsley will indeed be returning to school shortly.