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
Call for Papers Opens - International UDC Seminar 2015
05/01/2015
International UDC Seminar 2015 "Classification & Authority Control: Expanding Resource Discovery" will take place on 29-30 October 2015 in Lisbon (Portugal). Call for papers is open until 8th March.
Czech UDC Online release
03/01/2015
UDC Online in the Czech language will be released for public use in January 2015.