Category:Pages with OL errors
 | This is a maintenance category, used for maintenance of the Wikipedia project. It is not part of the encyclopedia and contains non-article pages, or groups articles by status rather than subject. Do not include this category in content categories. |
| This category is not shown on its member pages unless the appropriate user preference (appearance → show hidden categories) is set. |
 | Administrators: Please do not delete this category as empty! This category may be empty occasionally or even most of the time. |
 | If this category has 25 items or more, it will be reported as a backlog. () |
This category contains pages that contains bad Open Library (OL) identifier links. It is populated by {{OL}}, and various citation templates with the |ol= parameter. To clean up, ensure that the OL is valid (#######A for authors, #######M for books, or #######W for works).