This is done in a number of ways. The simplest method is for you to add them yourself. We can train you to use WordPress if you are unfamiliar, then you can start adding them at your own page.
If you prefer, and you have the budget for it, we can manage this for you if you have the photos and all details of the products you wish to sell. We would do this with care and attention, and with great care and respect for your items.