Universal Decimal Classification
UDC is one of the most widely used classification schemes for all fields of knowledge. It is used in libraries, bibliographic, documentation and information services in over 130 countries around the world and is published in over 40 languages.
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UDC Consortium
The UDCC is a non-profit association of publishers established to maintain, develop and distribute the UDC for the benefit of its users. Apart from its strategic, managerial and promotional responsibilities, the UDCC also appoints an editorial team and advisory board to oversee the content of the scheme and contribute to its regular revision in order to reflect new knowledge.
UDC Books and Schedules
 
News
National Library of Serbia joins UDC Consortium
30/04/2019
In 2019, the National Library of Serbia joined the UDC Consortium. The NLS is one of the seven national libraries members of the Consortium.
New data in UDC Online English
03/02/2019
UDC Online English has been updated with the new UDC Master Reference File data (MRF12). This includes changes to around 6,000 classes (over 2,000 new classes, 3,000 modifications and over 700 cancellations).
Events
June
20
First ISKO-Low Countries Conference - "Morsels of Knowledge" (Conference and Inaugural Meeting)
Brussels (Belgium)
August
24
IFLA World Library and Information Congress - 85th IFLA General Conference and Assembly
Athens (Greece)
October
09
ISKO France Conference 2019 - "Open data and megadata in Social Sciences: new challenges for the state and organization of knowledge?"
Montpellier (France)