What goes into a good review? Just as in elementary school, you were given book report guidelines, a book review has key point you should hit.
Book reviews should help a reader decide if they want to read the book. The review should contain the central idea, an indication of the author's writing style ie: this other author meets that author with a twist, and at the end you should have an overall evaluation.
I often look for reviews that have several 1-2 star reviews on amazon because to me, this is a book that is talked about enough it made it past the target audience and may be something I'd be interested in. I for sure check out the 4-5 star reviews as well though! :)
Do us all a favor though, if you have spoilers in the review, let us know at the beginning of the post!
Are you a regular reviewer? As an author do you read your reviews?