Culture · 6 pages · 12 min
How Dewey and Library of Congress differ
Dewey nests subjects in decimals, while Library of Congress classification starts with letters.
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From the opening
Dewey Decimal Classification divides knowledge into ten main classes and then into decimals, so a longer number is a narrower subject inside a shorter one. Library of Congress Classification uses letters for broad classes and numbers inside them, and it was built to arrange one enormous research collection. The opening covers decimals under ten main classes, letters first, then numbers, and headings are not call numbers.
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Inside
- Decimals under ten main classes
- Letters first, then numbers
- Headings are not call numbers
- One book, two different shelves
- Where the idea stops applying
- A distinction worth keeping
Sources
- Dewey Decimal Classification
- Library of Congress Classification schedules