This is the Coraline Wiki's top-level category; or: this is the root category.
All categories have been placed in this one, except sub-categories. This allows for casual readers to easily browse through them.
Most pages allow for the categorization of it by merely typing one and selecting it, it'll be obvious. If it isn't obvious then that page possibly lacks the ability to have one adding through the panel-interface on the right side.
What can be done is adding the new category to a page with this code:
[[Category:Categoryname]], simply place it at the end of an article.
This category has the following 12 subcategories, out of 12 total.