> In 2014, publishers sold just over 2.7 billion books domestically, .... Estimating the U.S. population at 320 million, that's about 8.4 books per person per

> In 2014, publishers sold just over 2.7 billion books domestically, .... Estimating the U.S. population at 320 million, that's about 8.4 books per person per year -- higher than I would have expected.