Universal Decimal Classification (UDC)

UDC logo

UDC is a highly flexible and effectice system for organizing bibliographic records for all kinds of information in any medium including organizing and recording books, bibliographic records, information resources and even objects such as stamps and coins.

The UDC Online is the Complete Edition of UDC available electronically, and with additional functionality.  Click here to see all more information

FREE two week trial of UDC Online

For the trial please use our online enquiry form contact our UDC Customer Services department on +44 (0)20 8996 7555, email udc@bsigroup.com

Brochure cover

UDC brochure

Download the new BSOL brochure.

Read More

UDC publications

See the UDC hardcopy publications.

Read More

About UDC Online

Derived from the Master Reference File (MRF) from the UDC Consortium, UDC Online contains all available references and classification and has over 65,000 entries.

Read More

UDC structure & use

UDC is structured according to traditional disciplines of study, but is highly flexible to allow for constant revision in order to keep pace with development of knowledge. The UDC Master Reference File (MRF) is updated yearly.

Read More

Print this page

Free trial of UDC online

For the trial please fill out our online enquiry form or contact our UDC Customer Services department on +44 (0)20 8996 7555, email udc@bsigroup.com

UDC online - free trial
UDC online - free trial