I.J. Parker asked a question over on Sarah's blog that got me thinking: why don't rave reviews translate into bigger sales for books?
(We'll assume for argument's sake that the premise is true. It's hard to measure the relationship between reviews and sales, as there is no direct method of tracking them. But I think that there is to at least some extent a disconnect between the two. I do believe that reviews sell books, but I'm not sure that the intensity of preference expressed by the reviewer makes much of a difference.)
I think that for most readers, reviews function more in the manner of advertising, rather than as specific motivators to buy. They make the consumer aware of the product, but they don't necessarily compel them to buy it. Therefore, the relative enthusiasm the reviewer expresses for the book, whether positive or negative, doesn't matter that much.
People see a review and it puts the book in their mind. So perhaps if they have some degree of interest in the author already, or if they see some subsequent reinforcement of that image, they might decide to buy the book. But I don't think there is a large number of readers who read a rave review and then, as a direct result, go out and buy the book. I would like to think that we, as reviewers, have that kind of influence, but I don't believe we do.
Obviously, this is all speculation, as we don't have the data to test the premise. (Although a few economists tried a while back, using some fuzzy Amazon data, and concluded that the positive or negative quality of the review did have an impact on sales.)
Perhaps the overall problem is a larger one, namely that readers don't pay a lot of attention to book reviews in the first place. I also don't think the average newspaper consumer is a careful reader of reviews. They'll be flipping through the paper and see a review of the new Dan Brown book and think, "Oh cool, the guy who wrote The Da Vinci Code has a new one out" but not stop to appreciate that the review is actually saying it's a piece of garbage.
I also wonder if the "grade inflation" in reviews -- too many raves for too many lousy books, a phenomenon I see all the time -- has caused consumers simply to discount the praise reviewers bestow upon books. This is also a significant risk, I think, of the proliferation of amateur online reviews, which are generally ill-considered and overly enthusiastic, if not outright puffery (paging Harriet Klausner).
I don't have any hard answers here, but I find it interesting to think about. Feel free to share your thoughts in the comments below.