“ The good news (for writers) is that this means that ebooks on computers are more likely to be an enticement to buy the printed book (which is, after all, cheap, easily had, and easy to use) than a substitute for it. You can probably read just enough of the book off the screen to realize you want to be reading it on paper.
So ebooks sell print books. Every writer I’ve heard of who’s tried giving away ebooks to promote paper books has come back to do it again. That’s the commercial case for doing free ebooks. ”