E-book daily unit sales on Amazon in the U.S. 2016, by publisher category
e-book sales revenue exhibits growing tendencies on the U.S. market.
The graph shows daily e-book unit sales on Amazon in the United States as of January 10, 2016, broken down by publisher category. The source found that in the measured period indie published e-books were the most popular on Amazon, with more than 159.72 thousand units sold daily in that time. All in all,