“In the massive world of publishing, where up to 1 million books are published every year, getting the word out about a book can be a herculean task. Ostensibly, that’s where review services come in, so today, we’re discussing the largest purveyors of those services: what they provide, how they provide it, and whether they’re worth an author’s time, money, and patience.”

Source: Editor’s Corner: Book Reviews: The Options, Their Differences, and How They Can Help