Fangirl, written by Rainbow Rowell, is a heartwarming college romance book that explores the world of fanfiction and first love. The story revolves around Cath, a shy and introverted college freshman who is an avid fanfiction writer. As she navigates the challenges of college life, Cath falls for her roommate's friend, Levi. Fangirl beautifully captures the ups and downs of young love, self-discovery, and the power of fandom.