Canon refers to all the information arising from the original, or officially sanctions, material.

In Supernatural, in addition to the TV Show, canon covers material in the:

The notion of what comprises the canon is subjective, and both fans and the creators of a body of material will have differing opinions on the topic. On this Wiki, canon from sources other that the TV Show contains a superscript tag to indicate its source, so readers can ascribe their own hierarchy or value to the information.

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