圖書館

10 main classes of Dewey Decimal Classification (DDC)

000 – Computer science, information and general works
Most general class and is used for works not limited to any one specific discipline, e.g., encyclopedias, newspapers, general periodicals. This class is also used for certain specialized disciplines that deal with knowledge and information, e.g., computer science, library and information science, journalism.

100 – Philosophy and psychology
Subject for philosophy, parapsychology and occultism, and psychology.

200 – Religion
Subject for religion.

Note: The philosophy and religion subjects are using a customised classification based on DDC.

300 – Social sciences
Subject for social sciences, including sociology, anthropology, statistics, political science, economics, law, public administration, social problems and services, education, commerce, communications, transportation, and customs.

400 – Language
Subject for language, linguistics, and specific languages. Literature (e.g. novel) is found in 800.

500 – Sciences
Subject for natural sciences and mathematics.

600 – Technology
Subject for technology.

700 – Arts and recreation
Subject for art in general, fine and decorative arts, music, and the performing arts.

800 – Literature
Subject for literature, and includes rhetoric, prose, poetry, drama, etc.

900 – History and geography
Subject for history and geography.