920 dewey decimal

Dewey decimal 920 vs 921

Dewey decimal system number for autobiography free.

List of Dewey Decimal classes

Codes of a library classification system

The Dewey Decimal Classification (DDC) is structured around ten main classes covering the entire world of knowledge; each main class is further structured into ten hierarchical divisions, each having ten divisions of increasing specificity.[1] As a system of library classification the DDC is "arranged by discipline, not subject", so a topic like clothing is classed based on its disciplinary treatment (psychological influence of clothing at , customs associated with clothing at , and fashion design of clothing at ) within the conceptual framework.[2] The list below presents the ten main classes, hundred divisions, and thousand sections.[3]

Class – Computer science, information, and general works

  • Computer science, knowledge, and systems
  • Bibliographies
    • Bibliography
    • Bibliographies
    • Bibliographies of individuals
    • [Unassigned]
    • Bibliographies of anonymous and pseudon