Sailor Moon is an early 90's Shojo manga written by Naoko Takuechi. The story follows Usagi Tsukino, a hopeless 14 year girl who meets a cat called Luna and discovers that is "Sailor Moon" a superheroine. With the aid of her allies and the mysterious Tuxedo Mask, Sailor Moon battles the forces of evil!
Arguably the most famous version, in 1992 Junichi Sato directed an anime adaption that focused more on Sailor Moon's friendships rather than romance. Midway throughout Season 2, Kunihiko Ikuhara took over as the lead director until the final season Sailor Stars, where he retired from working on the franchise and Takuya Igarashi took over. Additionally, three movies were made to accompany the anime.
Various productions have been made to tell the story of Sailor Moon in the context of a musical.
Prolific screenwriter Yasuko Kobayashi wrote an adaptation of Sailor Moon in 2003. The series attempts to keep a balance between keeping elements of the manga while staying to the pace of the original anime, but the production values leave a lot to be desired.
Recently, Toei Animation is working on a new anime adaptation that is closer to the manga to than the original anime. However, although a Season 4 has been confirmed, not many details have been released.