Tibby is a fictional character from the book series "The Sisterhood of the Traveling Pants," written by Ann Brashares. She is one of four friends who share a special bond and a pair of magical jeans that fit each of them perfectly. Tibby is known for her independent spirit and often takes on the role of the group's voice of reason. In the series, Tibby is portrayed as a creative and thoughtful individual who enjoys filmmaking. Her character faces various challenges, including dealing with family issues and personal growth, which resonate with many readers. The stories explore themes of friendship, love, and self-discovery.