From the article: "Sales of eBooks made up 6.4% of all book sales in 2010, with the number expected to grow even more this year. In fact, since 2008, eBook sales have went up by 1039.6%, while revenue in the same period was also increased by 1274.1%! " Read more:
eBooks sales increased more than 1,000% since 2008 | Ubergizmo
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