This is a list of all current volumes of the Japanese manga series One Piece, as well as the titles of the chapters contained therein. Chapters are arranged by volume, with their appropriate volume titles and chapters listed underneath. Chapter and volume titles include Japanese text, romaji transcription, and English translation of each title, along with the titles assigned by VIZ Media in its English adaptation.
One Piece is published as a serial in the manga anthology magazine, Weekly Shonen Jump. As the magazine's name suggests, a new issue of Jump (and thus a new chapter of One Piece) is released on a weekly basis. Factoring in double issues of the magazine and personal hiatuses taken by Eiichiro Oda, however, approximately 45-48 chapters are published per year. Three to four months after appearing in Jump, these chapters are then compiled into collected volumes, or tankōbon, which contain between 9 to 11 chapters (excluding vol. 1 which contains 8 chapters as well as vol. 63, vol. 69 and vol.77 which each contain 12 chapters) each and run to approximately 208 pages. These volumes also include new cover artwork, storyboard-phase sketches, a question-and-answer column by the author, a section where the character Usopp comments on reader-submitted fan art, and other bonus features. However, due to the economical limitations of the tankōbon format, any art originally printed in color (other than on the dust jacket) is reproduced in grayscale.
The following chapters have appeared in Weekly Shōnen Jump but have yet to be reprinted in tankōbon format, as collected volumes of One Piece are generally released every two to three months. Weekly chapters do come with some benefits, such as occasional cover illustrations or color title pages, and supplemental materials such as story information or character Popularity Polls. However, print quality (in terms of both paper and ink) is considerably lower than the collected releases, and artwork can be obscured by ads and other text placed there by the magazine. Buying the magazine on a consistent basis is also far more expensive than waiting for the book-format release.
Volume 46's cover art was originally featured on an issue of Shonen Jump Magazine's cover, adjustments were made for the cover such as adding Brook.
Each volume cover has a different header, changing in color each time. The one that breaks this cycle is Volume 50. Volume 50 changes from the standard title, then picture synopsis, to a picture (of Nami), the title (that is surrounded in flames), and is then followed up with the pictures of Zoro, Luffy, and Brook. This change was likely done to commemorate the fiftieth volume of One Piece.