22, ఆగస్టు 2009, శనివారం

Dewey Decimal Classification - Main Subjects

The Dewey Decimal Classification is a system of library classification made up of ten main classes or categories, each divided into ten secondary classes or subcategories, each having ten subdivisions. This system is a logical way of classifying a comprehensive array of disciplines, whether academic or practical.


Classes

1. 000 – Computer science, information & general works
2. 100 – Philosophy and psychology
3. 200 – Religion
4. 300 – Social sciences
5. 400 – Language
6. 500 – Science
7. 600 – Technology
8. 700 – Arts and recreation
9. 800 – Literature
10.900 – History, geography and biography

020 Library & information sciences

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