Yes, but to be fair to publishers: libraries don't replace sales the way that piracy can. Borrowing requires a trip to the library, which has a limited number of copies of any book, borrowers have a limited time to read a book, they can't make notes in it, etc. Enthusiastic fans will often still buy. If they can get a permanent copy that's just as good as the paid version, without leaving home, for free, that's a different matter.<p>Not that piracy == lost sales in every case. But a pirated copy gives more of the value of the original than a borrowed book does.