The Dewey decimal classification system divides knowledge
The Dewey decimal classification system divides knowledge Numerically and alphabetically. The Dewey Decimal Classification System is the world’s most widely used library classification system. It divides all the world’s knowledge into 10 major categories, from 000 to 999. Each of the 10 major Dewey classes, has 10 divisions. These are further divided – the more numbers, the more specific the subject. In this way, the Dewey system progresses from the general to the specific. The decimal point is used to make items even more specific.