"Great Soviet Encyclopedia" is a large multi-volume encyclopedia published in the USSR in 1926-1947. The total volume of the encyclopedia is more than 100,000 articles on more than 65,000 pages. The book contains information from various fields of knowledge such as history, science, culture, art, politics and many others. "Big Soviet Encyclopedia" was considered a source of comprehensive and reliable knowledge for readers, was popular among researchers, scientists, students and a wide range of readers. The publication was of great interest as a unique example of the ideological and cultural life of the Soviet Union.