I like how he uses a very popular book to debunk this non-myth, explaining how “The Little Prince” was still selling well in France and was still easy to find both even though it’s not under public domain there. He forgets, however, that after a certain period of time, most copyrighted works actually lose their (commercial) relevance, and many things just end up lost.
5 Seriously Important Facts about Copyright the Media Should Keep on Repeating
Rute Correia

Sorry, this paragraph makes no sense. He explains how The Little Prince was selling well in France & you can find both of what? Both requires there to be two things — you’ve mentioned one.