Most self-published authors who make a significant income write in series of books. And most of them have many books available for readers who like what they do. It’s something beginners in the self-pub world rarely understand. They expect to write one book and have the world discover how brilliant they are and then rake in the money and the fame. But it rarely works that way in traditional publishing, and almost never in self-publishing. This is primarily because there are only so many readers who want what you have to offer, and only a few ways to reach them….