According to the Association of American Publishers audio book sales for 2009 totaled $192 million, down 12.9% on the prior year. E-books overtook audiobooks in 2009 with sales reaching $313 million in 2009, up 176.6%. The report uses data from the Bureau of the Census as well as sales data from eighty-six publishers inclusive of all major book publishing media market holders.
Overall, U.S. publishers had net sales of $23.9 billion in 2009, down from $24.3 billion in 2008, representing a 1.8% decrease. In the last seven years the industry had a compound annual growth rate (CAGR) of 1.1%.
For more details look at the Resource Shelf report here.