May 20, 2022

New: Dewey Decimal Classification Statistics Snapshot (October 2012)

Via a 025.431 Blog by Dewey Editor and Chief, Joan Mitchell:

Here’s a brief snapshot of the DDC 23 EN database (the database associated with the English-language version of DDC 23) as of 1 October 2012:

  • 38,000+ explicit assignable numbers in schedules
  • 12,000+ facets (building blocks from Tables 1-6 + internal add tables to be added to show languages, geographic areas, ethnic/national groups, genres, etc.)
  • 100,000+ Relative Index terms
  • 26,000+ mapped terms from LCSH, BISAC, and MeSH
About Gary Price

Gary Price ( is a librarian, writer, consultant, and frequent conference speaker based in the Washington D.C. metro area. Before launching INFOdocket, Price and Shirl Kennedy were the founders and senior editors at ResourceShelf and DocuTicker for 10 years. From 2006-2009 he was Director of Online Information Services at, and is currently a contributing editor at Search Engine Land.