Eiichiro Oda (Japanese: 尾田 栄一郎, Hepburn: Oda Eiichirō, born January 1, 1975) is a Japanese manga artist and the creator of the series One Piece. With more than 523.2 million tankōbon copies in circulation worldwide, One Piece is both the best-selling manga in history and the best-selling comic series printed in volume, in turn making Oda one of the best-selling fiction authors. The series' popularity resulted in Oda being named one of the manga artists that changed the history of manga.