The Dewey Decimal Classification (DDC) is a system of library organization and cataloging developed by Melvil Dewey in the late 19th century. It is widely used by libraries around the world as a means of organizing and classifying books and other materials based on subject matter.
The DDC is composed of ten main subject areas, each identified by a basic number. These areas include general works, philosophy and psychology, religion, social sciences, language, natural sciences and mathematics, technology, arts and recreation, literature, and history and geography. Each main subject area is further divided into subclasses, and each subclass is assigned a specific number.
The DDC system provides a hierarchical structure, with broader subject categories at the top and more specific subjects beneath them. The classification numbers are arranged in a decimal format, allowing for further expansion within each subclass. This makes it easier for library staff to locate and shelve materials, as well as for patrons to navigate the library's collection.
By using the DDC, libraries are able to maintain consistency in organizing and retrieving information. The system allows for efficient management of library materials, promotes accessibility for users, and provides a framework for knowledge organization. Additionally, the DDC is designed to be flexible and adaptable, allowing for updates and revisions to reflect changing knowledge and new areas of study.
