Every library has a special retrieval area, where there are many computers. There may be only one desktop icon in the computer. When clicked, a search column similar to a search engine will appear, which is a retrieval tool of the library. Enter the title you want in it and the search results will pop up.

2. Read the calling number.

In the 1 step retrieval interface, there will be detailed information about the book you are looking for, and the most important thing is the call number. The call number is an ID card of the book in the library, which indicates the type and location of the book.

3. Find books by calling number.

First of all, look at the first letter of the call number, which is usually the English capital of the book ABCDEFG. These are the main categories of books. Each shelf in the library is marked with the classification of this shelf. Some bookshelves are A and some are B. If you want to find J, you can find J's bookshelf. Many numbers in the back are the order of books. Sort from the largest to the smallest, and look carefully in the bookshelf.

Extended data:

The book index number consists of two parts, namely the classification number and the classification number. The former classification number is unified throughout the country, and the latter classification number is based on local plans, so not all index numbers are the same.

1, classification number

The classification number (1) indicates which subject category this book belongs to. China Library assigns different numbers to different categories of books according to the Chinese Library Book Classification.

(2) The number similar to "A32" in the book index number is the book classification number. For example, "A32" means that the book belongs to Stalin's Marxism-Leninism and Mao Zedong Thought's single-line works;

(3) The book classification number is unified nationwide;

(4) Book classification: Books are divided into 22 categories, which are represented by different capitalized English letters, and then different subcategories are divided under each category, and Arabic numerals are used immediately after capitalized English letters.

2. Discrepancy number

The (1) identification number indicates the different varieties of this kind of books in our library. For example, a library bought many kinds of books on C Programming, including those edited by Zhang San and Li Si. They all have the same classification number, so in order to distinguish these books, give them a distinction number.

(2) The identification number is not uniform, but there are generally two types: the first is the species number, that is, it is numbered according to the order of entry into Tibet under this classification number, and the second is the author number, that is, it is coded according to the author's name.

3, the index number view method, such as

The index number "F230 34" indicates that the classification number of this book is F230 (Accounting) and the distinguishing number is 34, that is, this book is the 34th accounting category in our library.

References:

Baidu Encyclopedia-China Library Book Classification