Margaret Weis is an American author and game designer, best known for her work in the fantasy genre. She gained prominence for co-authoring the Dragonlance series with Tracy Hickman, which became a cornerstone of fantasy literature and role-playing games in the 1980s. In addition to her work on Dragonlance, Weis has written numerous novels and contributed to various tabletop role-playing games. Her storytelling often features rich world-building and complex characters, making her a significant figure in both literature and gaming communities.