How could we create a proxy measure for the relative luxury of a book, and by extension the social prestige of its contents? One way of getting at this might be to measure the ratio of inked to non-inked space for a given work. While the measure is flawed — verse uses less page space, illustrations may sometimes apply more ink across the page — it is at least a starting point. What if Google Books were to publish the ratio of inked to non-inked space for all of the items it has scanned? We could then see how writing of different types, for example, plays or prose fiction, move into larger print formats such as the Folio.