The first level, the universe attributes as the standard is divided into humanities books and natural books.

The second level, to the basic disciplines of books attributes as the standard division. Humanities basic disciplines: a philosophy, b religion, c ethics, d logic, e aesthetics, f psychology, g language, h literature, i art, j politics, k economics, l military, m law, n education, o sports, p media, q information, r management, s commerce, t history, u archaeology, v ethnic, w life, x finance, y statistics, z society. Natural basic subjects: a astronomy, b geography, c mathematics, d physics, e chemistry, f biology, g machinery, h telecommunications, i water conservancy, j electricity, k textile, l food, m construction, n mining, o metallurgy, p energy, q transportation, r aerospace, s medicine, t engineering, u agronomy, v forestry, w aquaculture, x computer, y environmental protection, z information.

Third level, divided by book-affiliated subject criteria.

The fourth level, divided by the functional attributes of the book (authorship, scholarship, teaching, help).

The fifth level is divided by the attributes of book varieties: writings (works, theoretical works, applied writings), academic (commentary, evaluation, controversy, seminar, research, examination, translation), teaching (school textbooks, social training materials, self-study textbooks, references, handouts, study materials, popular readings, experimental internships, test questions and exercises, and syllabi), and help (dictionaries, encyclopedias, classifieds, political books, yearbooks, manuals, bibliographies, and so on). , almanacs, handbooks, bibliographies, indexes, abstracts, tables, atlases, standards).

Sixth level, according to the international space of books is divided into national and foreign originals (non-subject defined space).

The seventh level, divided by book chronology (non-disciplinary chronology).

A few technical notes on the integrated classification of books:

⒈ ⒈ version of the age of the author labeling is the scope of the publisher's business, in the published books have been marked, repeated in the classification number will bring a burden to the reader. The advocate of simplicity, is the professional ethics of librarians, necessary to resolutely retain, can be required or not resolutely eliminated. Cancel the recommendation number. Request number, book number replaced by the collection number, with the collection classification number to unify the title.

Piece of disciplinary content there is cross-cutting, the concept of its essential attributes and non-essential attributes, generally should only be categorized as a class, should be to reveal the essential attributes of the concept of the word as the basis for the division. Cross-disciplinary generally follow the law of disciplinary orientation, but also subject to disciplinary standards, is special.

3 book subject classification is different from the subject classification standards; this classification of book subject code is applicable to library-specific book subject code. Book classification number can be used as a book publishing general.

Sung does not set up the general theory of compound sub-table, general compound sub-table, imitation sub-table, simple table, not divided into comprehensive categories of books, do not use the structure of the general and sub-total, do not use the original conversion system labeling.