Internet Archives Blog: “The books of the 20th century are largely not online. They are mostly not available from even the biggest booksellers. And, libraries who have collected hard copies of these books have not been able to deliver them in a cost-efficient, simple, digital form to their patrons. The way libraries could fill that gap is to adopt and deliver a controlled digital lending service. The Internet Archive is trying to do its part but needs others to join in. The Internet Archive has worked with 500 libraries over the last 15 years to digitize 3.5 million books. But based on copyright concerns the selection has often been restricted to pre-1923 books. We need complete libraries and comprehensive access to nurture a well-informed citizenry. The following graph shows the number of books digitized by the Internet Archive, binned by decade…”