The Dewey Decimal Classification

The Dewey Decimal Classification (DDC) is a system used by libraries to organize books and materials by subject. It assigns each item a numerical code based on its topic, allowing for easy location and grouping of related books. The system is divided into ten main classes, such as sciences, arts, history, and literature, with further subdivisions for more specific subjects. This hierarchical structure helps librarians and users find materials efficiently and maintain an organized collection, making information accessible and systematic across library collections worldwide.