The main purpose of those pages is to introduce the sub-categories, and give them inspiration and guidance to help decide which sub-category they’re interested in.
Provide thumbnail previews, longer titles, and descriptions for those sub-categories. These components will also clarify categories with ambiguous industry jargon.
Feature the sub-categories prominently, at the top of the intermediary category pages.
Intermediary category pages can also contain content such as:
- image galleries
- featured products
- links to wizards, finders, configurators
- popular brands
- cross-navigation (links to other relevant categories)
You can also add a traditional category sidebar with text links to sub-categories.