Getting your book published is no longer a 'wait-and-hope' proposition. There are so many ways to get published today that no author has to go through the process of submitting a proposal (non-fiction) or a full manuscript (fiction) to literary agents and endure the agonizing wait to see if it's accepted by them and then wait some more for the agent to make a deal with a publisher.
I've positively reviewed Patricia Cornwell in the past, but when I had negative things to say about one of her books, some of her fans accused me of being jealous. OK, I have a confession. It's, like, 100 percent true, since she sells more books than I ever will. You know what else? It's true of all book reviewers.