Association of American Publishers Annual Book Sales (Polls major publishers and uses U.S. Census data)
2008 Total E-book Sales: $$113 million
Annual Change: +68.4 percent
2007 Total E-book Sales: $67 million
Annual Change: +23.6 percent
2006 Total E-book Sales: $54 million
Annual Change: +24.1 percent
Not reported in earlier years
Source: Association of American Publishers
Association of American Publishers Monthly Book Sales Statistics
2009
June (latest)
E-books: $14.0 million
Monthly Change: +136.2 percent
Year-to-Date Change: +149.3 percent
May
E-books: $11.5 million
Monthly Change: +196.6 percent
Year-to-Date Change: +166.7 percent
April
E-books: $12.1 million
Monthly Change: +228.3 percent
Year-to-Date Change: +154.8 percent
Source: Association of American Publishers
2008
December
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August
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June
May
April
March
February
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2007
December
November
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Source: Association of American Publishers