Amazon is an enormous marketplace, with departments from home and garden to automotive and industrial. The marketplace is made up of items offered by a variety of different merchants, both companies and individuals. If you're buying from an individual, the person likely doesn't have the reputation that a large and established company does. You can take a peek inside their seller profile and look at what other buyers have to say.
Log-in to your Amazon Account. Search for an item you wish to purchase.
Click on the "New," "Used" or "Refurbished" links on the item page. For example, if there are three used copies of a certain book, click "3 Used" to view the sellers.
Click the seller's rating percentage next to "Seller's rating."
Browse the seller's profile. Once the seller's profile appears, you can view their star rating, feedback other buyers left, shipping rates and return policies. You can also contact the seller.