May 28, 2022

Update: The Dewey Decimal System By the Numbers (December 2014)

025.431: The Dewey blog from the DDC team shares a few updated numbers about the classification in a recent post.

For example:

  • DDC now has 40,159 EXPLICIT assignable numbers in schedules (including built numbers)
  • 370 relative index terms were added during 2014
  • 3,228 BISAC mappings are available.

The complete post can be accessed here.

Experimental Tools Using DDC from OCLC Research

  • CookFinder
    You can search by Dewey, person, place, topic (e.g., course, ingredient, method and more) and browse related works by author and topic.
  • Fiction Finder

Fiction Finder is a works-based based application that provides access to millions of works of fiction described in WorldCat records for books, eBooks, audio books, movies and television. You can search by person, place, topic, genre, character, Dewey and more.

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.