# /research/top1000/key.htm

originally: http://www.oclc.org/research/top1000/key.htm

# Key to entries

| Ranking | The title's ranking in the list. The more libraries that own an item, the higher it ranks.
| Title | A popularized, anglicized, title for the work. Sometimes the titles for the items that make up the work vary by edition, country of publication or distributor, language, etc.
| Author | Author's name, if any.
| Library holdings | The total number of works held by libraries.
| Bibliographic records | The total number of catalog records that compose the work. In librarianship, each edition, translation, version, etc. gets a distinct catalog record, and this figure represents the work's publication history accordingly.
| Rank on complete list | If you are looking at a sub-list, we also provide the item's ranking on the Complete Top 1000 list.
|  | Click on this to find the title in an OCLC library near you. Then click progressively down the list of ISBNs on the left. This uses OCLC Research's xISBN-enriched lookup service for Open WorldCat.
| [Thumbnail] | Cover art of an arbitrary edition of the work is included whenever available.