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WorldCat knowledge base collections

The WorldCat knowledge base grows continuously and includes library, publisher, and OCLC-contributed content from around the world, including e-books, e-journals and open access content.

As of September 2015, the WorldCat knowledge base provides access to 14,047 content collections from 5,967 providers. We continue to work with content providers to ensure timely and accurate updates while offering new cooperative data management capabilities that will give users the ability to maintain and improve the quality of the worldCat knowledge base as well.

View a list of collections [Excel spreadsheet] included in the knowledge base.

This spreadsheet represents all of the collections available in the WorldCat knowledge base and indicates:

  • Which collections are open access
  • Which collections are customizable
  • The percentage of items in each collection that contain an OCLC number (which can have holdings set in WorldCat and/or can have MARC records output)

If you would like to request the addition of specific collections to the WorldCat knowledge base, please send your suggestions to OCLC support.