I can answer that with a single acronym: POD (print on demand). It’s the most important force in publishing in my lifetime. It has inadvertently disrupted the corporate monopoly, leveled the playing field and democratized what was essentially a closed (and rigged) system. POD makes it possible for anyone to be a small press publisher and produce quality editions that can potentially reach a worldwide audience. It’s also environmentally friendly.
Those who oppose POD are sociopathic snobs and crypto-fascists. Around here, POD stands for Power of Democracy.