"Other highlights in the February 2011 report (all February 2011 vs February 2010 unless otherwise noted):
Digital categories:
E-Book sales were $90.3 Million, growing 202.3% vs February 2010. Downloaded Audiobooks were $6.9M, an increase of 36.7%.
Trade categories:
Adult Trade categories combined (Hardcover, Paperback and Mass Market) were $156.8M, down 34.4%. [that's Catherine's emphasis. ]Children’s/Young Adult categories combined (Hardcover and Paperback) were $58.5M, a decline of 16.1%
*Year-to-date 2011 vs YTD 2010: E-Books increased by 169.4% while all categories combined of print Trade books declined by 24.8% . . . .
The AAP monthly and year-end sales report represents data provided by 84 U.S. publishing houses representing major commercial, education, professional, scholarly and independents. Data on e-Books comes from 16 houses. The report does not include all book and journal net sales but provides what’s acknowledged as the best industry snapshot currently available."