I've read that you should send out books for review to those who are familiar with or done other reviews within your book genre. But what if you get a request for a review from someone whose past reviews have been for books outside your genre and you don't feel like they will 'grasp' or relate to the theme of your book, thus may give you a 'bad' review. Do you send them a book anyway?
I hate to be picky, being that I'm a first-time self published author. But on the other hand, I don't want to just give out free books to people who will totally miss the message in my novel. So, is it bad business to decline a book review? And if not, what is the easiest way to turn one down?