Most authors worry about book reviews and whether or not it will be a good one. While we can't control how someone will like or dislike our books, we can take a few steps to help facilitate the process and make it more enjoyable for the reviewers, besides trying to write the best book possible.
As much as we authors would love to have our feelings and our career on the reviewer's mind, the bottom line is, the reviewer's first responsibility is to the reader. It's their job to help a reader decide if our books are the type readers will enjoy and would like to invest their time in reading and their money in buying. We must be prepared to hear anything from great, good, to not so good, and bad. Keep in mind that what one reviewer will love, another will hate.
When you contact a reviewer, be sure to include the "on sale" date as well as the "release month". Some reviewers need 2-3 months notice, while others may need 4-6 months notice. Be aware of their time frame and deadlines. There are no guarantees that the reviewer will review your book, your submission is for "consideration only".
If your book doesn't get reviewed in spite of all your best efforts, try not to take it as a personal slight. Publications often make changes in their printing schedules that could have affected your review. Space allotments could have been adjusted for breaking news, too many books similar to yours may have come in, or a number of things could have happened.
Be sure to send them a thank you note for their review, even if it wasn't all you had hoped it would be. A little appreciation could make a difference for next time.