Class A: General Works is a classification used by the United States Library of Congress Classification system. This article outlines the subclasses of Class A. [1] [2]
1–999......Collections; Series; Collected works
1–(90)......Encyclopedias
2–600......Dictionaries and other general reference works
1–21......Indexes
1–(501)......Museums; Collectors and collecting
1-(271)......Periodicals
1–945......Academics and learned societies
10–2001......Yearbooks; Almanacs; Directories
(20)–999......History of scholarship and learning; the humanities
The Dewey Decimal Classification (DDC), colloquially known as the Dewey Decimal System, is a proprietary library classification system which allows new books to be added to a library in their appropriate location based on subject. It was first published in the United States by Melvil Dewey in 1876. Originally described in a 44-page pamphlet, it has been expanded to multiple volumes and revised through 23 major editions, the latest printed in 2011. It is also available in an abridged version suitable for smaller libraries. OCLC, a non-profit cooperative that serves libraries, currently maintains the system and licenses online access to WebDewey, a continuously updated version for catalogers.
The Library of Congress Classification (LCC) is a system of library classification developed by the Library of Congress in the United States, which can be used for shelving books in a library. LCC is mainly used by large research and academic libraries, while most public libraries and small academic libraries used the Dewey Decimal Classification system. The classification was developed by James Hanson, with assistance from Charles Martel, in 1897, while they were working at the Library of Congress. It was designed specifically for the purposes and collection of the Library of Congress to replace the fixed location system developed by Thomas Jefferson.
The Harvard–Yenching Classification System is a library classification system for Chinese language materials in the United States of America. It was devised by Alfred Kaiming Chiu (1898–1977). The system was primarily created for the classification of Chinese language materials in the Harvard–Yenching Library which was founded in 1927 at the Harvard–Yenching Institute.
Class Z: Bibliography. Library Science. Information resources is a classification used by the Library of Congress Classification system. This page outlines the sub-classes of Class Z.
Class V: Naval science is a classification used by the Library of Congress Classification system. This article outlines the subclasses of Class V.
Class U: Military Science is a classification used by the Library of Congress Classification system. This page outlines the sub-classes of Class U.
Class T: Technology is a classification used by the Library of Congress Classification system. This page outlines the subclasses of Class T.
Class R:Medicine is a classification used by the Library of Congress Classification system. This page outlines the subclasses of Class R.
Class Q: Science is a classification used by the Library of Congress Classification system. This article outlines the subclasses of Class Q.
Class N:Fine Arts is a classification used by the Library of Congress Classification system. This page outlines the subclasses of Class N.
Class M: Music is a classification used by the Library of Congress Classification system. This article outlines the subclasses of Class M.
Class K: Law is a classification used by the Library of Congress Classification system. This page outlines the sub-classes of Class K.
Class J: Political science is a classification used by the Library of Congress Classification system. This article outlines the subclasses of Class J.
Class H: Social Sciences is a classification used by the Library of Congress Classification system. This article outlines the subclasses of Class H.
Class G: Geography, Anthropology, Recreation is a classification used by the Library of Congress Classification system. This article outlines the subclasses of Class G.
Class L: Education is a classification used by the Library of Congress Classification system. This page outlines the sub-classes of Class L.
Class P: Language and Literature is a classification used by the Library of Congress Classification system. This page outlines the subclasses of Class P. It contains 19 sub-classifications, 12 of which are dedicated to language families and geographic groups of languages, and 10 sub-classifications of literature .
Class D: History, General and Old World is a classification used by the Library of Congress Classification system. This article outlines the subclasses of Class D.
Class C: Auxiliary Sciences of History is a classification used by the Library of Congress Classification system. This article outlines the subclasses of Class C.
Class B: Philosophy, Psychology, Religion is a classification used by the Library of Congress Classification system. This article outlines the subclasses of Class B.