General Discussion
In reply to the discussion: How Germany Keeps Amazon at Bay and Literary Culture Alive [View all]HiPointDem
(20,729 posts)ology.
Bowker employed a new methodology for 2006 to report the annual title output statistics. The older methodology had focused on books with prices and with subject classifications
to report on trends in average price and in market segments.
To obtain a more accurate picture of total title output, the following enhancements were made for the 2006 statistics:
--The total count now includes ISBNs that have not been assigned a subject (Unclassified items).
--The counts now include ISBNs without prices.
--A number of additional book bindings were added to the counts. For example, Stapled and Laminated.
To provide comparable prior year data, the numbers for 2002-2005 data were restated using the new methodology.
*Non-traditional consists largely of reprints, often public domain, and other titles printed on-demand. The number also includes records received too late to recieve subject classification.
http://www.bowker.com/assets/downloads/products/isbn_output_2002-2011.pdf