Overview of all keyword tags in articles

In library and information science, bibliographic control (also known as information organization or bibliographic organization) is the process by which information resources are described so that users are able to find and select that information resource. An information resource could be a book, a movie, or an image, among other things. By providing a name, title, and subject access to the description, a bibliographic record is created. This bibliographic record, which is essentially metadata, is indexed by an information retrieval tool (such as a database or a search engine) so that a user can find out whether or not the information resource is relevant to them. (Excerpt from <a href="http://en.wikipedia.org/wiki/Bibliographic_control">Wikipedia article: Bibliographic control</a>)