Attack on Titan Wiki:Canon Policy

The canon material is the content accepted as part of the official story of Shingeki no Kyojin (Attack on Titan) and which takes place in the same continuity of the original series, the manga.

Basically, only content made by series creator Hajime Isayama is accepted as canon, while derivative material from other authors is intended to take place in alternative continuities and therefore is considered non-canon; unless it's specifically adopted by Isayama into the main continuity.

Canon and Non-canon material
Canon


 * Manga
 * Guidebooks
 * Statements by Isayama in other media (his blog, interviews, etc)

Non-canon
 * Anime
 * Novels
 * OVAs
 * Video Games
 * Movies
 * Fanfiction

Treatment of the types of material
Since canon and non-canon works are understood as taking place in different continuities, they are treated separately, and are not included in articles outside their own universe. This means that events of the anime are not included in articles of manga chapters, and events of the live-action movie are not included in neither one nor the other, because the three happen in three different continuities.

However, there are a few exceptions to this rule:


 * Pictures from the anime can be used in pages about certain elements common to all continuities: characters, objects, locations and organizations; as long as they are equivalents of scenes found in canon material, have better quality than them and do not contradict them.
 * Major events from the anime, novels and OVAs can be included in character's pages, differentiated by the Non-Canon template.
 * Minor differences between manga and anime can be pointed out at the end of episode's pages, in a special section called "Manga and anime differences".
 * For purposes of consistency, Hange Zoë's gender is always interpreted as female (see Hange's gender).