What are categories?
Categories are groups of articles on related topics. At the bottom of an article, you will see a box containing the categories to which that article has been assigned. Simply click any of these categories to go to the corresponding category page. From there you can browse other articles on the same topic, or navigate through the category tree to find other related categories that you may be interested in.
How are categories organized?
Most categories have a number of other categories listed as subcategories. These are listed in a special section of the category page, which appears above the list of articles belonging to the category. Click on these subcategories to navigate through the category tree to find more specific groups of articles.
Similarly, you may want to navigate in the other direction, to find more general groups of articles ("parent categories"). These are listed in the box at the bottom of a category page, just like on a Modern Wikia article page. To browse all categories see Special:Categories.
What types of categories are there?
Different parts of Modern Wikia use different schemes for organizing articles into categories.