Books: Evolution of What to SellBefore the Internet, we sell papers. We buy books for its information, true; but we also sell the papers that captures that information we need. When internet became available, books become paperless (at least, for e-books), and we sell only its information. We could have physical guards guarding the shop, preventing people from reading inside the shop without buying. As for e-books, we have lots of locks (expiring PDFs, non-printable contents, format that requ...

Books: Evolution of What to SellBefore the Internet, we sell papers. We buy books for its information, true; but we also sell the papers that captures that information we need. When internet became available, books become paperless (at least, for e-books), and we sell only its information. We could have physical guards guarding the shop, preventing people from reading inside the shop without buying. As for e-books, we have lots of locks (expiring PDFs, non-printable contents, format that requ...