The Gossip Girl novel series was created by Cecily von Ziegesar and written by herself as well as by an unknown ghost writer. The name of the first novel in the series, Gossip Girl, is also the nom de plume of the narrator. It has also been adapted into a TV series airing on The CW and CTV. It spawned two spin-off book series, The It Girl and Gossip Girl: The Carlyles.