January '10 E-Book Sales Almost Quadruple January '09
![](http://www.ereads.com/uploaded_images/Trade-Stats_09Q4-795106.jpg)
IDPF reminds us that:
* This data represents United States revenues only
* This data represents only trade e-book sales via wholesale channels. Retail numbers may be as much as double the above figures due to industry wholesale discounts.
* This data represents only data submitted from approx. 12 to 15 trade publishers
* This data does not include library, educational or professional electronic sales
* The numbers reflect the wholesale revenues of publishers
* The definition used for reporting electronic book sales is "All books delivered electronically over the Internet or to hand-held reading devices"
The graph at at the top of the page shows sales through '09 but do not reflect January 2010.
Richard Curtis
Labels: E-Book Industry, IDPF