The Dewey Decimal System Vs. The Library Congress Classification System

The Dewey Decimal System was created by Melvil Dewey in the late 1800’s. The problem with the Dewey Decimal System is that the subjects are too broad. The 10 subjects that are in the Dewey Decimal System include subject titles like, Science (including mathematics), Religion, Social Sciences and History, subjects that have volumes upon volumes of information. The Library Congress Classification System contains subjects that narrow in on subjects. It contains 21 subject titles to the Dewey Decimal Systems 10, which is why most college libraries use the Library Congress Classification System.

http://library.thinkquest.org/5002/