For categories to appear in your catalog, you must add at least one published video to them. Once added, your catalog will have a section, as seen below, for each category. The category titles are links that will take your users to a category landing page that shows all videos in that category. If you have a Featured Category selected for the slider, that category will not appear among other categories since it's already being displayed in the slider—customers can navigate the videos within the Featured Category on the slider.