It is to facilitate the arrangement of books. The marks made by each book before entering the library. Have you noticed the books borrowed from the library? There is a small label on the spine of the book. For example, the label of the book & gt says: I242.4/50 14. According to the fourth edition of>, I is literature, 242.4 is an ancient Zhang Hui novel, and 50 14 is the four-corner number of the author's name, which together is the call number.
Call number can also be called shelving number, which indicates the shelving position of documents in the collection for extraction and shelving.
Generally composed of letters, numbers and other symbols. The call number of our library consists of classification number, author number and volume number. Readers' interests
You can easily find the books you need from the bookshelf by using computer terminals, networks or cards to query the call numbers of books.