What does the Dewey Decimal System classify?

What does the Dewey Decimal System classify?
– Rocks
– Books
– Chemicals
– Movies


Answer: The Dewey Decimal System is the most widely used method for classifying books in the library. It is named after Melvil Dewey, an American librarian who developed it in 1876. The classification’s notation makes use of three-digit Arabic numerals for main classes, with fractional decimals allowing expansion for further detail. The number makes it possible to find any book and to return it to its proper place on the library shelves. The classification system is used in 200,000 libraries in at least 135 countries.

The Dewey Decimal Classification, or Dewey Decimal System, is a proprietary library classification system first published in the United States by Melvil Dewey in 1876.