The Princess Diaries, a young adult novel and the first in the series of the same name, follows the story of ninth-grader Mia Thermopolis, who discovers that her estranged father is actually a prince, making her a princess. Mia, with her gangly limbs and busy hair, begins taking etiquette lessons with her grandmother in order to learn how to act like royalty. At the same time, Mia must deal with other issues, like fighting with her best friend Lilly and her mother dating one of her teachers.