How will DDC 22 differ from DDC 21?

Notable changes in Edition 22 include major updates to:

• 004-006 Data processing Computer science
• The second of a two-phase update to reduce Christian bias in 200 Religion
• 301-307 Sociology & anthropology
• 340 Law
• 510 Mathematics
• 540 Chemistry
• 610 Medicine & health
• 900 History & geography
• Selected changes to Tables 1 through 6, including and the renaming of Table 5 from "Racial, Ethnic, and National Groups" to "Ethnic and National Groups"
• Replacement of Table 7 (Groups of Persons) with direct use of notation already available in the schedules and in notation 08 from Table 1
• Streamlining of the Manual
• And a number of additional updates made throughout the schedules

For more information, please refer to New Features, located on the Dewey web site in PDF format at http://www.oclc.org/dewey/DDC_Edition_22/NEW_FEATURES.pdf. You can also find Relocations, Discontinuations, and Reused Numbers in PDF-format on the Dewey web site at: http://www.oclc.org/dewey/DDC_Edition_22/Relocations_and_discontinuations.pdf.

Finally, note that DDC 22 is now incorporated into WebDewey. DDC 22 will be available in print format July 2003.

Last revised: 23 January 2004