Shops are divided into multiple categories of stores which sell a selected set of goods or services.
Many shops are part of a chain: a number of similar shops with the same name selling the same products in different locations. The shops may be owned by one company, or there may be a franchising company that has franchising agreements with the shop owners (see also restaurant chain).
Some shops sell second-hand goods. Often the public can also sell goods to such shops. In other cases, especially in the case of a nonprofit shop, the public donates goods to the shop to be sold (see also thrift store). In give-away shops goods can be taken for free. In Antique shops the public can find goods that are older and unique.
For details on the various types of retail stores see the following genres: