One Piece Wiki:Guidebook/Canon Guidelines

The One Piece Wiki covers everything related to One Piece, regardless of whether or not it fits with the canon story. However, editors should know what is and isn't canon and how to treat information depending on its classification.

Canon
The following sources are considered canon and their contents should be used on this wiki. These sources were either created by Eiichiro Oda or by those close to him with his approval. Canon sources include:


 * The manga
 * The SBS
 * Databooks
 * Grand Line Times
 * One Piece novel A
 * Wanted!
 * Monsters

Canon Hierarchy
The wiki uses a canon hierarchy in the event of a discrepancy between sources about a piece of information. The hierarchy goes Original Manga <- SBS <- Databooks <- Supplementary materials such as the Grand Line Times. Thus, if a fact presented in a databook conflicts with one in the manga, then the manga information will be used while the databook information will be considered incorrect.

Non-Canon
The following sources are made by people independently of Oda, or by Oda with no intention of fitting with the main story. They do not affect how the wiki documents canon subjects. Non-canon sources include:


 * Anything in the anime that was not present in the manga. This is usually referred to as "filler".
 * Movies, even those where Oda was involved.
 * Color Spreads and Color Walks, as even though Oda draws these himself, the things depicted in them have no bearing on the actual story.
 * Video Games
 * Novels, with the exception of novel A
 * Features and Omakes, eve
 * OVAs
 * Cross Epoch and other anime crossovers

How Should Information Be Included
All canon information that provides details on subjects documented on this wiki should be included in those subjects' articles. All information pertaining to non-canon subjects should also be included, though there should be indication in the article that the subject is non-canon. These articles should also have categories indicating their canonical status, such as Category:Non-Canon Islands

Non-canon information can be entered about canon subjects, but to a more limited degree. If a character is present in a non-canon story, this should be included in their history section, but the information must have non-canon tags around it. However, making additions to a characters' personality or abilities section based on non-canon information should be avoided, as the creators of the non-canon work may treat the characters differently than Oda. Major canon characters with a lot of screentime should especially not have information based on non-canon works inserted into their articles. This does not apply as much to characters with little canon screentime unless the information clearly conflicts with their canon portrayal, and all information added should indicate that it came from a non-canon source. Overall, however, it is much more preferable to mention these non-canon portrayals in the "Anime and Manga Differences" section on a character's page.

Non-canon additions to other types of canon subjects can generally be added easier. For example, a non-canon area of a canon location can be added to the page as long as it indicates that it is non-canon. Non-canon techniques can also be listed, and if there are many of them they should get their own subsection under the Techniques section. So long as readers understand that the information is not canon, there is usually little problem with including it.