"Great Soviet Encyclopedia" (CE) is one of the largest and most respected encyclopedias in the world, which was published in the USSR in 1926-1990. In its 31 volumes, this encyclopedia covers a wide range of topics, from history, geography, and culture to the natural sciences and technology. Each volume of THIS contains information that covers all areas of life and cognition, as well as numerous illustrations, diagrams and tables. The "Great Soviet Encyclopedia" was not only a source of knowledge for millions of readers, but also became a symbol of the ideology and culture of Soviet socialism.