This is the mother of all categories on this site! Literally! This is our top-level category. (Looking at it another way, it is our root category!) Think of it as the Wright & Co. Law Offices/Wright Anything Agency, the place in which everything starts and the place from which everything else branches off.
Ideally, every other category should be a subcategory of at least one other, and every article should be in at least one category; many will fit well into two (e.g. location and subject-matter). A full list of existing categories can be found at Special:Categories.
To add a new category, just add [[category:(categoryname)]] to the article or existing category page (after checking whether any existing category is suitable).
If a category has to do with the franchise itself (e.g. plot elements, gameplay elements, music), it should go into the "Ace Attorney" category. All other categories, namely those pertaining to this wiki, should be categorized directly into this category or indirectly to any category other than the AA category.
This category has the following 14 subcategories, out of 14 total.