Countries with libraries that use the Dewey Decimal Classification system
Libraries in 135+ countries use the Dewey Decimal Classification (DDC) system (or classification systems based on the DDC) to organize their collections for their users. Here is a list by region:
Africa
The Americas
Asia Pacific
Europe
Middle East
The Dewey Decimal Classification (DDC) system is the world’s most widely used way to organize library collections. The DDC constantly updates to enable better discovery across any topic in multiple languages. Because the DDC is easy to use, you can increase the visibility of your materials quickly and efficiently.
Service availability
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Available everywhere
Learn more
Download the Dewey Services brochure
Download the brochure (US Letter)
Download the brochure (A4)
Connect with English-language WebDewey users in the OCLC Community Center.
Upcoming events
Watch this space for more upcoming webinars
On-demand webinars
Watch this space for past and recorded Dewey Services events.
Recent news
The Dewey blog is a great source for news and views on classification issues as well as interesting and unusual DDC resources and curiosities. It's also a convenient way to share feedback directly to the DDC editors to help shape the future of the DDC.
All copyright rights in the Dewey Decimal Classification system are owned by OCLC, Inc. Dewey, Dewey Decimal Classification, OCLC and WebDewey are registered trademarks of OCLC, Inc.