"Great Soviet Encyclopedia (VY)" is one of the largest publications of the Soviet period, consisting of 30 volumes, which presents comprehensive information on various fields of knowledge - from history and culture to technology and science. The encyclopedia was published in 1926-1947, and later an expanded edition was published with the participation of many scientists and specialists. In each volume, readers will find thousands of articles about world-famous events, personalities and phenomena. The edition is also marked by a large volume of illustrations, diagrams, tables and maps that help to better understand the information presented. The "Big Soviet Encyclopedia" is not only a source of encyclopedic knowledge, but also a kind of reflection of the ideological views of that time, which helps to understand the historical context and cultural features of past decades.