Not always. Titles must have OCLC numbers to output records.
There are 2 options for viewing gaps in OCLC number coverage:
- Option 1: View the percentage of OCLC numbers in a collection is listed in the Collections available in the WorldCat knowledge base
- Option 2: View OCLC number coverage by downloading a KBART file of the collection. See Report errant OCLC numbers for complete instructions
There are other reasons you could get a different number of records than you expect. For more information, see: