Using a new methodology, Bowker reported that there were 282,500 books published in the U.S. in 2005, compared to its original estimate of about 175,000. The higher number is the result of adding books in unclassified categories; ones that didn't include prices; and had nontraditional bindings.

Title Output, 2005—2006

Subject 2005 2006 % Chg.
Source: R.R. Bowker
Agriculture 1,483 1,289 -15%
Arts 8,762 9,134 4
Biography 8,904 10,489 15
Business 7,885 9,006 12
Education 6,951 7,192 3
Fiction 34,927 42,076 17
Gen. Works 2,017 1,980 -2
History 12,686 14,386 12
Home Eco. 1,634 1,697 4
Juveniles 32,112 29,248 -10
Language 5,669 5,595 -1
Law 5,468 5,287 -3
Literature 6,297 7,601 17
Medicine 11,688 11,257 -4
Music 4,076 3,250 -25
Phil./Psych. 10,556 12,818 18
Poetry 9,414 9,716 3
Religion 16,785 17,921 6
Science 12,626 12,972 3
Soc./Eco. 23,750 24,812 4
Sports 6,438 6,480 1
Technology 7,138 7,312 2
Travel 4,941 5,155 4
Cookery 3,062 2,793 -10
Personal Fin. 542 567 4
Computers 6,092 5,498 -11
Unclassified 30,597 26,391 -16
Total 282,500 291,922 3%