"One piece" redirects here. For the clothing, see One-piece swimsuit. One Piece (ワンピース Wan Pīsu?) is an award-winning Japanese shōnen manga series written and illustrated by Eiichiro Oda, that has been serialized in Weekly Shōnen Jump since August 4, 1997. One Piece follows the adventures of Monkey D. Luffy, a 17-year-old boy who gains elastic abilities after inadvertently eating a supernatural fruit, and his diverse crew of pirates, named the Straw Hat Pirates. Luffy explores the ocean in search of the world's ultimate treasure known as the One Piece and to become the next Pirate King. On his journey, Luffy battles a wide variety of villains and makes several friends. The individual chapters are being published in tankōbon volumes by Shueisha, with the first released on December 24, 1997, and the 62nd volume released as of May 2011. In 2010, Shueisha announced that they sold over 230 million volumes of One Piece manga so far; volume 61 set a new record for the highest initial print run of any book in Japan in history with 3.8 million copies (the previous record belonging to volume 60 with 3.4 million copies). Volume 60 is the first book to sell over two million copies in its opening week on Japan's Oricon book rankings. The chapters have been adapted into an original video animation (OVA) produced by Production I.G in 1998, and an anime series produced by Toei Animation, which began broadcasting in Japan in 1999. Since then, the still ongoing series has aired over 500 episodes. Additionally, Toei has developed eleven animated feature films, an OVA, and five television specials. Several companies have developed various types of merchandising such as a trading card game, and a large number of video games. The manga series was licensed for an English language release in North America by Viz Media, in the United Kingdom by Gollancz Manga, and in Australia and New Zealand by Madman Entertainment. The anime series has been licensed by Funimation Entertainment for an English language release in North America, although the series was dubbed previously by 4Kids Entertainment. Since its release, One Piece has become the most popular manga series of all time in Japan and one of the most popular manga series worldwide. It is the highest-selling manga of all time in the history of Weekly Shōnen Jump, as well as currently being its most acclaimed m\anga. One Piece is currently ranked as the best-selling series of all time in manga history. It enjoys a very high readership, with more than 230 million volumes of the series sold by 2011. One Piece has received wide critical acclaim from reviewers, primarily for its art, characterization, humor and story.