At what point in history did we start producing more English books than one person could read? http://t.co/alc0d7p31w (XKCD, I adore you.)

At what point in history did we start producing more English books than one person could read? http://t.co/alc0d7p31w (XKCD, I adore you.)

via Gabriel Snyder’s Stellar faves http://twitter.com/kathrynschulz/status/413460509158285313