"Moxie" is a young adult novel written by Jennifer Mathieu that follows the story of Vivian Carter, a high school junior who becomes inspired by her mother's rebellious past. Frustrated by the sexist culture at her school, Vivian creates an anonymous zine called "Moxie" to empower her fellow female students and challenge the status quo. As the zine gains popularity, Vivian finds herself at the center of a movement that encourages girls to stand up for themselves. The novel explores themes of feminism, friendship, and the importance of speaking out against injustice in a relatable and engaging way.