Canon is the whole of facts that are considered true either within a certain context or by an organization. Examples of Monster High canon are that Cleo de Nile is afraid of the dark, that the 2011 TV special is called "Fright On!", that the Monster High book series contains four books plus extra material, and that Toralei Stripe is voiced in English by America Young.
The Monster High Wiki only accepts contributions that relate to canon (with one exception). It used to accept non-canon contributions in the form of Original Characters until April 16, 2011, at which point the Monster High Fandom Wiki was founded. If you wish to tell the world about your OC, please post information on them on the Monster High Fandom Wiki.
What is Monster High canon?
As per this article's intro, Monster High canon is every bit of information regarding Monster High that is true—"true" being defined as "by Mattel or with approval of Mattel and with longterm consequences".
Acceptable fanon
Notes
Mattel and fans
{{infoleak}}