What are the five categories of book classification?

1. Books are divided into social science books and natural science books according to disciplines.

2. According to the language, it is divided into Chinese documents and foreign documents.

3. According to the purpose, it is divided into ordinary books and reference books.

4. According to the content: novels; Children's books; Non-fiction; Professional books; Reference books; Manual; Bibliography; Script; Report; Diary; Book collection; A collection of photos and paintings.

5. According to characteristics: thread-bound books; Hardcover book; Paperback book; Bagged books; Electronic book; Audio book; Books for the blind; National language books.

Characteristics of Book Classification (1) China Library Classification is a comprehensive classification with detailed categories, numerous annotations and different versions, which can meet the needs of literature classification of various libraries and information departments.

(2) On the basis of the rank list, the compilation technology is improved by adopting the combined numbering method, setting alternate categories, compiling multiple sub-tables and adopting multi-column classification.

(3) The classification number is short, easy to remember and use.

(4) A detailed category index and description (manual) has been compiled.

China Library Classification has been adopted by most library and information departments in China. Starting from 1988, the standard book number (ISBN) of books published in China adopts the category number of China Library Classification. Its classification number is also printed on the centralized catalogue cards compiled by Beijing Library and Shanghai Library. 1985 won the first prize of national scientific and technological progress.