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Everything about Universal Decimal Classification

Bibliographic and library classification system

The Universal Decimal Classification (UDC) is a bibliographic and library classification representing the systematic arrangement of all branches of human knowledge organized as a coherent system in which knowledge fields are related and inter-linked. The UDC is a faceted classification system featuring detailed vocabulary and syntax that enables powerful content indexing and information retrieval in large collections. Since 1991, the UDC has been owned and managed by the UDC Consortium, a non-profit international association of publishers with headquarters in The Hague, Netherlands. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: Universal Decimal ClassificationA 5-minute orientation
  2. Skim a recent paper: Developing the system of interconnected classifications: Comparing the State Rubricator of Sci-tech Information and Universal Decimal ClassificationInfluential work since 2022
  3. Pick up a classic book: Universal decimal classificationThe most-reprinted book on the subject
  4. Read the landmark paper: Automatic classification of older electronic texts into the Universal Decimal Classification–UDCCited 20 times
  5. Go sideways: Faceted classificationA closely related topic
  6. Go sideways: Library classificationA closely related topic

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🗂️ The subject at a glance

  1. History
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🏆 Landmark papers (most cited)

🆕 Influential since 2022

📚 Books worth reading

Ranked by number of editions on Open Library, a rough measure of how lasting a book is.

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