Dewey Decimal Classification

The Dewey Decimal Classification (DDC) is a system used by libraries to organize books and other resources based on subject matter. It divides knowledge into ten main categories, each represented by a number from 000 to 900. For example, 600s cover technology and applied sciences, while 700s deal with arts and recreation. Within each category, subjects are further divided into more specific topics using additional numbers. This structured approach helps users easily locate and access information, making libraries more navigable and efficient.