Call number, also known as call number, is the code used in library book shelving and the main basis for literature borrowing and collection inventory. Generally, it consists of several groups of numbers arranged by branches, which are often printed on the upper left corner of the catalog card, on the book label below the spine, and above the title page or back cover of the book. A call number can only represent one kind of book. ?

Because the shelving methods of library books can basically be divided into two categories: classified shelving and formal shelving. Therefore, call numbers can basically be divided into two categories: classified call numbers and formal call numbers.

There are mainly property registration number, call number and shelf number. The former takes the title registration number of the book as the call number. Such as A737908. The latter takes the number composed of the shelf number, layer number and book number of the bookshelf where a book is located as the call number. For example, 00 1- 1-0 15, the number 1 5 representing the first floor. When necessary, these two call numbers should be accompanied by the language number and reference book identifier.

Extended data:

The number assigned by the library to each set of books. This number has a certain structure and specific meaning. In the book collection system, each call number is unique, which can accurately determine the arrangement position of the collected books on the shelf and is very necessary code information for readers to find books.

In general, the call number consists of two parts: the classification number and the book number. 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. By using the author number, books written by an author on the same subject will be grouped together, which is also convenient for readers to find information.

References:

Baidu encyclopedia-call number