"Classification and Subject Index for Cataloging and Arranging Library Books and Pamphlets" is a publication created by the famous American librarian Melville Dewey. The book provides a classification system and a subject index to help organize and catalog the library's book holdings. The publication is an important reference guide for librarians and helps ensure effective management of library resources. "Classification and Subject Index for Cataloging and Organizing Library Books and Pamphlets" helps users find the literature they need quickly and conveniently, promoting the development of a culture of reading and education.