Need. Because when books are culled in the library, it is necessary to review the culled books to ensure that the culled books meet the culling standards and regulations. The contents of the audit include the publication time, status and borrowing of books, which need comprehensive evaluation and judgment. At the same time, we should pay attention to protecting the cultural heritage and historical and cultural value of the library and avoid deleting precious documents and cultural heritage by mistake. The purpose of weeding out old books is to ensure the quality and service level of library collections and improve readers' reading experience and satisfaction.