OCLC Documentation
OCLC Bibliographic Formats and Standards
Explains the appropriate contents and format of each field, subfield, and indicator in an OCLC MARC record
Searching WorldCat Reference Card
Quick reference guide to commands for searching the OCLC bibliographic file
Searching WorldCat User Guide
Detailed instructions for searching the OCLC bibliographic file
OCLC Authorities Reference Card
Quick reference guide to commands for searching the OCLC Authority File
OCLC Authorities User Guide
Detailed instructions on deciphering records in the OCLC Authority File
Enhance Participants List
OCLC codes, seen in the 040 field, of libraries that have Enhance status, meaning their records should be of good quality
OCLC System Alerts
Check here to find out if OCLC is experiencing system problems