Amateurs — who will always be that, and therefore turn into embittered amateurs — think that their mission is to pimp the hell out of their own work.
Professionals understand that’s the job of their readers.
No one other than an idiot is going to listen to your constant “Buy my book!” crap.
What do people listen to? This: “I just read this book, I liked it, and I want to recommend it to everyone else.”
5. Marketing comes last, if at all. Google didn’t advertise until long after it became a household name.
Their readers do the selling.