Categories are groups of articles with their own pages on the category namespace to make it easier to find articles in a certain group. (For detailed information, see Help:Categories.) Every page must have at least one category. The infobox and navbox templates automatically categorize articles in their appropriate categories, but these are only general ones, such as or . More specific categories should usually be included in the content. User-created categories consist of any category created by a user of Custom BIONICLE, and are properly titled "Category:User:Username."