What is it called when the libraries assign numbers to topics?

rootsgrrl

The Dewey Decimal System Nov 03 05, 12:32 PM

bloomsby

'Assigning numbers to topics' is best defined as 'clasification'. There are a number of systems in use, and the Dewey Decimal System is only one. In practice, the process of classification is part of a wider process known as the 'accession' of a book, which involves giving the book a shelf-mark, often also a serial number, including it in the library catalogue and so forth. Other decisions, such as whether the book should be for reference only and so on are often made at the same time. Once 'accessed' a book enters the library in a formal sense. I'm not a librarian, so if I've made a mistake, please say so. Nov 03 05, 12:51 PM

lanfranco

In the U.S., the classification system most in use today is LCC -- the system developed by the Library of Congress. Most books now carry their LC call numbers on the copyright page for use by libraries: This site includes the LC schedule of initial letters by topic: http://en.wikipedia.org/wiki/Library_of_Congress_classification Nov 03 05, 4:55 PM