Library classification is a system used to organize books and other materials in a library. It helps librarians and users find information quickly and efficiently. By categorizing items based on subjects, authors, or formats, libraries can create a structured environment that makes it easier to locate resources. There are several classification systems, with the most common being the Dewey Decimal System and the Library of Congress Classification. Each system assigns a unique code to items, allowing for systematic arrangement on shelves. This organization supports research and learning by ensuring that related materials are grouped together.