All Amazon members can submit written or video reviews for items listed on Amazon.com, and Amazon encourages customers to share their opinions, both favorable and unfavorable. In Amazon, customer review is for products only, not for sellers and FBA shipping or their services. Moreover, you can also leave your review without placing an order.
Amazon worked over the years to make millions of customer reviews as useful as possible – It added features like Amazon Verified Purchase, helpful votes, and review comments in the pursuit of a system that’s open and flexible and yet structured and helpful for anyone who wants to learn more from other customers about anything we sell.
Customer Reviews are meant to give customers genuine product feedback from fellow shoppers. Amazon’s goal is to capture all the energy and enthusiasm (both favorable and critical) that customers have about a product while avoiding use of reviews to outright advertise, promote and especially mislead. Customer Reviews help customers learn more about the product or genre, hear the reasons behind your star rating, and ultimately decide if this is the right product for them or not.
Authors and artists can add a unique perspective and we very much welcome their customer reviews. While Amazon encourages reviewers to share their enthusiasm and experience, there can be a fine line between that and the use of customer reviews as product promotion. Amazon don’t allows anyone to write customer reviews as a form of promotion and if they find evidence that a customer was paid for a review, they’ll remove it. Amazon don’t allows authors to submit customer reviews on their own books even when they disclose their identity.