Book Reviews and Amazon — a battle royale

Reviews are a key signal used in the ranking of online books. The more reviews, the higher the book ranks and the more books are sold. Of course, given this logic, reviews have been widely gamed by authors and publishers, to the point when they are sometimes not reliable guides as to a book’s quality and popularity. Authors round up their friends to review their books, or pay other services to generate reviews, or review other authors’ books in the hope of reciprocal reviews. Amazon has been fighting back against this degradation of the reviewing signal — the outlines of said epic struggle are described here, along with the latest strategies for independent authors.