COLLNET 2025: 19th International Conference on Advancing Research in Webometrics, Informetrics & Scientometrics (WIS) and the 24th COLLNET Meeting at Hybrid Mode (In-Person & Virtual).
September 19, 2025 at 9am to September 21, 2025 at 5pm
Dewey Decimal Classification - edition 23
The new edition of Dewey is now available online and in hard copy. The main updates and changes to subject categories are set out below. The new abridged edition, which will be the fifteenth, is not yet available. SCIS will notify customers via Connections and the SCIS blog when it is available.
SCIS has now changed templates and references from DDC 22 to DDC 23 and after September 2011 will officially begin to use the new edition.
DDC 23 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
- 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.
Examples
Virtual Danger: Staying Safe Online by Anne K Brown
DDC 22 call number: 004.678 BRO
DDC 23 call number: 025.042 BRO
Understanding Muslim Teachings and Traditions: A Guide for Christians by Phil Parshall
DDC 22 call number: 297.124 PAR
DDC 23 call number: 297.125 PAR
Cinematography: A Guide for Filmmakers and Film Teachers by Kris Malkiewicz and M David Mullen; line drawings by Jim Fletcher
DDC 22 call number: 778.53 MAL
DDC 23 call number: 777 MAL
Making Prints by Julie Ellis
DDC 22 call number: 760 ELL
DDC 23 call number: 740 ELL
