"Great Soviet Encyclopedia" is a large informational and scientific publication consisting of many volumes, which was published in the USSR in 1926–1990. This is an important reference guide that contains extensive articles on various fields of knowledge - from history and culture to technology and science. In each volume, the reader can find comprehensive information about various aspects of world and Soviet life. The "Great Soviet Encyclopedia" is not only a source of knowledge, but also a unique reflection of the ideology and way of life of that period. This encyclopedia preserves historical value and is an important piece of literature for anyone interested in the past and culture of the Soviet Union.