The Dewey Decimal System
The Dewey Decimal System is a classification system first developed by Melvil Dewey in the 1870's. It is now the mostly widely used classification system in the world, being used by libraries in 135 countries, as well as on the World Wide Web to organize information by subject. Below is a list of the basic subject divisions of the Dewey system. Be aware that some nearby libraries use a different classification system, known as the Library of Congress (LC) system, to organize their books.
