This is our top-level category, or looking at it another way, it is the root category.
Every page should be in a subcategory of one the three categories of this present page: Twin Peaks for the Twin Peaks franchise from a real world point of view, Twin Peaks universe for pages from a narrative one and finally Organisation for pages related to the wiki itself.
Pages can be in multiple subcategories but should not in subcategories from more than one of the three previously described top categories. (eg. A page can not be from both an in-universe and a real world point of view at the same time).
To add a new category to a page, just add
[[Category:Categoryname]] to the end of the article or existing category page.