Categories are a way to classify Tiki objects (Blogs, Image galleries, Articles, Polls, Forums, Wiki Pages, File Galleries). You can create a category tree with as many sub-categories as you want. Any Tiki object can then be added to one or many categories. The user will be able to use a category browser--navigating the category tree with links to the objects in the category. This can be used to let the users find all the information your Tiki site has about a specific topic/subject regardless if the information is in an article, a weblog or a file gallery.