Did you know that Dec. 10 is Dewey Decimal System Day? Me neither. Born on Dec. 10, 1851, Melvil Dewey is the librarian who invented the Dewey Decimal system of library classification. And in an age ...

First published anonymously in 1876 under title: A classification and subject index. 2d-14th editions published under title: Decimal classification and relativ index ...

Public libraries have long utilized the Dewey Decimal classification system which uses 10 broad categories and breaks them down into subtopics.