Amazon allows users to submit reviews to the web page of each product. Reviewers must rate the product on a rating scale from one to five stars. Amazon provides a badging option for reviewers which indicate the real name of the reviewer (based on confirmation of a credit card account) or which indicate that the reviewer is one of the top reviewers by popularity. Customers may comment or vote on the reviews, indicating whether they found a review helpful to them. If a review is given enough "helpful" hits, it appears on the front page of the product. In 2010, Amazon was reported as being the largest single source of Internet consumer reviews.
After locating the product in Amazon’s catalog, a seller will be prompted to enter information about its quality. It’s important to be as truthful and accurate as possible when describing the item as one of the following: new, used-like new, used-very good, used-good or used-acceptable. You can also provide a note with pertinent details about the item. For example, you can explain that a book is in good condition save a few folded pages.