Discount Available On DDC 23 Print Edition

OCLC will release a new print edition of the Dewey Decimal Classification, DDC 23 to the Americas in May 2011. The new edition includes several major changes held for simultaneous publication in the print and Web versions of the DDC plus many interim updates already distributed to users in WebDewey 2.0.

Order early and receive a 10% discount on DDC 23

Orders placed by July 1, 2011 will receive a 10% discount on DDC 23. 

Order DDC 23 and other Dewey services


Dedicated to Dewey users worldwide, DDC 23 features:

•    Many new topics and significant updates to selected fields

•    Numbers informed by interaction with the worldwide community of Dewey users

•    A complete overhaul to the representation of groups of people

•    Revisions to several standard subdivisions

•    Elimination of dual headings and unbalanced spans

•    A minimal price increase


As a result, DDC 23:

•    Better reflects the changing world

•    More accurately reflects regional differences around the world

•    Greatly increases classifier efficiency

•    Is more intuitive for the way classifiers work


DDC 23 also features:

•    New provisions in 004-006 Computer science and elsewhere to reflect changes in technology

•    Updates to provisions for the Orthodox Church and Islam in 200 Religion

•    Improved provisions in 340 Law for legal systems based on civil law

•    Significant updates to 370 Education resulting in an improved international framework for levels of education, kinds of schools, policy issues and specific subjects in primary education

•    Updated provisions for food and clothing

•    Updates to 740 Graphic arts and decorative arts

•    A new location and expanded development for cinematography and videography at 777

•    Significant expansions throughout 796 Athletic and outdoor sports and games

•    Significant expansions in Table 2, with parallel provisions in 930-990, for the ancient world, Italy, Switzerland, Sweden, Finland, Turkey, Indonesia, Vietnam and Canada

•    Updated historical periods throughout 930-990