"Imagine this: You need a copy of 'The Great Gatsby' for a class. You've gone to three book stores and you've found 'The Beautiful and Damned' and 'The Last Tycoon,' but no 'Gatsby.' Thats when you notice an Espresso Book Machine. You wander over, scroll through a list of available titles, and "Ah Ha!" ... 'Gatsby.' Fifteen minutes later you have a perfect copy of 'The Great Gatsby' printed up and in your hands."

Read this article.