Making a living <i>from book sales alone, by writing books</i> is as rare as a billionaire.<p>Still. Quite sad to think about.<p>Of course, many writers use writing as part of a greater hustle, and there are of course also movie deals and other adaptations.<p>And this excludes journalism, tabloids, copywriting, technical writing, writing for hire, short-form writing, screenwriting, playwriting, and many others.<p>In fact, I think writers focusing exclusively on books is quite rare. I expect there are many more people making a living through writing <i>alone</i> than there are billionaires.