Managing Multiple Shops
One of the great features of PrestaShop is called "multistore", meaning the ability to manage multiple shops from the same back-office.
Thanks to this feature, you can manage many customized shops, which share many common elements. For more efficiency, you can even create groups of shops.
Using the multistore feature
How to decide if you need the multistore feature
You may find yourself wanting to use the multistore feature, when in fact it is not necessary. For instance, if you want a multilingual shop, or if you need to use more than one currency, or if you would like to have a different graphic template for each category.
If the answer is 'no' to both questions, then the multistore feature is not for you.
One back-office to rule them all
When the multistore feature is enabled for your PrestaShop installation, many aspects of PrestaShop become customizable on a per-shop or per-shop-group basis.