The Economist on the future of books
Google will not divulge exact numbers, but Daniel Clancy, the project's lead engineer, gives enough guidance for an educated guess: Google's contract with one university library, Berkeley's, stipulates that it must digitise 3,000 books a day. The minimum for the other 12 universities involved may be lower, but the rate for participating publishers is higher. So a conservative estimate has Google digitising at least 10m books a year. The total number of titles in existence is estimated to be about 65m.