LBC is a Library-Bibliographical Classifications. It is intended for the organization of library collections, systematic catalogs and card catalogs. The LBC uses logical alphanumeric indexing based on Cyrillic and Arabic numerals. Thus, it is a combination of numbers and figures that indicate the section that the edition can be assigned to. By LBC library workers can determine the section that the book belongs to without reading it.

The determining principle of the book systematization is the content of the book. The tables are divided according to different criteria:

  • the object under study
  • the research method
  • the aim of learning
  • the object structure
  • properties, processes, object relations, etc.

LBC is the first Soviet classification. Specialists developed the initial version of the table in 1960-1968 and it was published in 38 volumes. 800 scientists took part in the development of the tables.

The classification tables can be universal or industry-specific. Universal tables are divided into three types:

  • complete
  • basic
  • shortened.

The complete BBC tables are not published in paper form for commercial reasons as such a publication would be too expensive. Basic and shortened tables are regularly reprinted with abbreviations. At the same time, there is no free electronic reference book for these tables and it makes the total implementation of the LBC into the library system difficult. LBC tables exist only in printed paper.