The concept of self-publishing has changed dramatically over the past 40 years; I should know, because I have been involved in publishing in one form or another for that long. My first two books were traditionally published by a NY house, meaning my agent sent them the first manuscript, they read it, they liked it and they decided to take a chance on an unknown and publish it. I even got a small advance on it. When they saw my second book, they snapped that one up, too, and both books had several runs over the ensuing few years. When the publishers decided the books had run their course, they took them out of print and reassigned all rights to me to do as I wished. Well, what I wished was to keep the books viable--but how?