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
Polish printed abridged edition from 2019 receives an award
19/11/2020
Polish abridged UDC edition "Uniwersalna Klasyfikacja Dziesiętna: wydanie skrócone dla bieżącej bibliografii narodowej i bibliotek publicznych" receives The Scientific Award of the Adam Łysakowski - awarded by the Association of Polish Librarians
Release of the new version of the Slovenian UDC Online
03/03/2020
On 29 February 2020, National and University Library Ljubljana released a new updated version of the Slovenian UDC online 4. elektronska izdaja tabel Univerzalne decimalne klasifikacije UDCMRF12. These UDC schedules are aligned with the latest version of the UDC MRF 12 (from December 2018) containing 72,000 UDC classes and brings changes in around 6,000 UDC records.
Events
December
10
How should today's thesaurus earn its keep? by Stella Dextre Clarke- in Introduction to Knowledge Organization - the first track in the ISKO UK's series of virtual classes Knowledge Organization Education
Online
December
12
Barcelona, Spain
March
02