I sold 3 copies of my books yesterday. How? Not by posting links to them with a 'buy me' post, although I do that once a day. No, I did it by tweet-watching a show enjoyed and interacting with other fans of it. I checked and during that one hour I sold 3 books. Don't let anyone tell you fb and twitter doesn't work for selling books. It DOES but you have to do it right.
Now...go buy my books. :p http://amzn.to/2eNPMkO