A category page is a wiki page which represents a wiki category. A category page not only lists all the pages in the category, but also allows a full, normal wiki page to be made, describing the category itself, and how to use it.
Examples of usage:
- To list a few very important pages within the overall category
- To summarize the category
- To explain which pages should have the category
- To specify a super-category for the category, making it into a sub-category
If you add a link to a category page, such as by adding the wiki text [[Category:Wiki]] to a page, then this automatically adds the page to the category.
To link to a category page without adding a page to the category, you add a colon (':') at the front of the wiki text, such as [[:Category:Wiki]], which renders as a normal-looking wiki link of the 'Category' namespace. For example, Category:Wiki.