Paul_uxb

Absolute beginner here, though in the past I’ve used Wordpress. There’s something I can’t figure out, through help and google searches. I want to use templates to set up a page containing categories for products in the antiques world; mirrors, tables, lighting etc. At this point, no e-shop is needed (maybe later). I want visitors to be able to click on an image which takes them to a dedicated page eg for mirrors, with separate images with details of each item. How do I set up these sub pages or galleries? Thanks and sorry if this is totally obvious how to do! Paul