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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 February 2014 , the WorldCat knowledge base provides access to 11,179 content collections from 5,710 providers. The knowledge base will continue to grow through content provider and member library contributions.

View a list of content included in the knowledge base.

If you would like to suggest the addition of specific collection to the WorldCat knowledge base, please send your suggestions to

We are a worldwide library cooperative, owned, governed and sustained by members since 1967. Our public purpose is a statement of commitment to each other—that we will work together to improve access to the information held in libraries around the globe, and find ways to reduce costs for libraries through collaboration.