The two classification systems used for arranging non-fiction books in libraries are the Dewey Decimal Classification system (typically used in public and school libraries) and the Library of Congress Classification system (mainly used in academic and special libraries).
Library of Congress Classification uses letters and numbers. This allows for more breakdowns of areas of knowledge than the Dewey Decimal System. Public libraries and school libraries use Dewey Decimal System. Most colleges and research libraries use Library of Congress.
the two classification of library is the DDC or LCC or the library of congress classification
The two library classification systems are: The Dewey Decimal Classification System and the Library of Congress Classification System. hope this helped :P
The Dewey Decimal System and the Library of Congress Classification System.
chronologial order
library of congress and dewel decimal clasification
Depending on your library, it may be any two of:Library of Congress ClassificationDewey Decimal ClassificationSuDocs ClassificationNLM Classificationor others, even home-grown classification systems.If your library is a federal depository library it almost certainly uses SuDocs for its collection of government documents.If your library serves a medical school, it may use NLM (National Library of Medicine) classification for its medical collection.It's not unusual for a library to use more than one classification system (ours uses four), and the easiest way to find out is to call the reference desk. They'll be happy to answer.
story biography
library classification objective
The classification used depends on the type of library. In most cases:Public libraries, school libraries, and other smaller libraries use the dewey decimal system.University and research libraries use the library of congress classification system.Most libraries use a combination of the Dewey Decimal classification system with computer support.
Academic libraries use the Library of Congress Classification System for classifying and arranging books.
The two major classification schemes used in the United States are the Dewey Decimal Classification System, used in most public libraries; and the Library of Congress Classification, used in most academic libraries.