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About Searching WorldCat Indexes

Find the audience and an overview of Searching WorldCat Indexes.

Searching WorldCat Indexes provides comprehensive information about indexes used to retrieve records from WorldCat. OCLC services, including cataloging and discovery/reference, use the same search indexes. Interfaces for searching WorldCat include:

  • OCLC Connexion® client (cataloging)
  • OCLC  FirstSearch® (reference)
  • OCLC WorldCat Discovery
  • OCLC WorldShare™ (Acquisitions, Circulation, Interlibrary Loan, Metadata)

Searching WorldCat Indexes shows MARC fields and subfields indexed for each WorldCat index, gives examples, and provides information about how each index works to help construct searches that retrieve the records you need.

Who should use Searching WorldCat Indexes?

Searching WorldCat Indexes is meant for library staff who use the OCLC interfaces listed to search WorldCat.

It is not meant for: