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What is the classification system used in a library?

Answer:
The most common library classification systems in English-speaking countries are the Dewey Decimal Classification and the Library of Congress Classification. The Bliss bibliographic classification is not often used in the United States, but it is very popular in the United Kingdom.
First answer by ID2003805606. Last edit by Mansonrepublica. Contributor trust: 186 [recommend contributor recommended]. Question popularity: 2 [recommend question].