I have created a hierarchy of categories and subcategories. It's obvious enough how to click down to a subcategory from its parent, but I can't see any way of navigating back up again, i.e. a link back to the parent from a subcategory. Is there any way of enabling this, please?
The solution is enable Breadcrumbs module and load it in your site template . After that, the system will display links which allows you to navigate between categories/sub-categories .