The first part of the call number is the classification number used according to the subject theme of the book. The second part of the call number is the author number arranged according to the name of the book author, or the serial number taken according to the time when the book entered the library.
Each book will be marked with a call number, and the librarian will arrange books according to the call number. If you want to find Lin's Old Story in the South of the City, the call number of the book found on the index machine is I427.7/829 (where I427.7 is the classification number and 829 is the book number), then it is on the shelf of China's modern novels. We can easily lock the position of a book according to the range marked on the bookshelf.
Library staff looking for books:
Books are also sorted according to this number, so you will know clearly where the books are. Next time you go to the library, you can pay more attention to the signs posted in the library and find the books you want in this way.
If you have a lot of books at home, you can also try to organize your own books to manage them. The bookshelves are neat and easy to find books. If you can't classify yourself, you can learn from CIP data. (CIP) can be found on the copyright page of books.