I guess they are just not making such a fuss about it 1) because you dont invest 200million in a book in production 2) a pirated book is about 3mb big so they cant stop the spread. 3) it has been done since the invention of pen and paper. I doubt my teachers and profs have ever asked the author everytime they copied stuff out of books , or sometimes whole books. There are photocopymachines in about every library inviting you to copy as much as you want.
The internet on the other hand, even if it spreads billions of ebooks for free, (which are nearly never read, but its good to know that you have them) increased book sales by a fair amount, i am looking at you amazon.
When i hear of a good book, or am reminded of its existence, chances are way better that i just log on amazon and order it , than going to the city to buy it (if its available atm) or to remember to do so a few days later.
I bought 8 books this month online, all because of spontaneously found recommendations or reviews or well done adverts. If i go to browse in my favourite bookstores, they might order me everything in 24hours, but that doesnt make me aware of a books existence, so without the internet, id have much more money left every month
