How does this happen though? Like, policing counterfeit physical products in an environment full of third-party sellers is actual work, because you have to som

How does this happen though? Like, policing counterfeit physical products in an environment full of third-party sellers is actual work, because you have to somehow figure out how to inspect or filter a bunch of actual things from many, many, people. By contrast, there aren't that many sizeable publishing houses in the world. Manning obviously isn't huge, but they aren't tiny either. They've been around for over 25 years, they have hundreds of titles---they're at least a medium-sized, serious, commercial press. And Amazon has been in the book industry for forever. So: how hard would it really be to maintain a list of authorized agents for serious, commercial presses, and not sell e-books for works currently in print from those presses, unless the person selling them is one of those agents, or can prove that the e-book is authorized/in the public domain? This does not seem hard at all. Like, not even a little bit. Hell, I'd go so far as to call it easy.