"Big Soviet Encyclopedia" is a cult book publication that was published in Soviet times and became an important source of knowledge for millions of people. This extremely comprehensive encyclopedia included information from the most diverse fields of knowledge: from history, geography and economics to culture, science and technology. In the "Great Soviet Encyclopedia" you could find articles on world and national history, famous figures of science and culture, as well as photographs, illustrations and diagrams. This book became a symbol of universal access to knowledge during the USSR and remains an important source of information and a source of nostalgia for many generations of readers. The "Great Soviet Encyclopedia" not only reflected the basic principles of Marxism-Leninism, but also opened up for readers a wide range of issues related to all spheres of social life. This encyclopedia is an important artifact of the cultural heritage of the past and a reference source that is still popular among those who value the pursuit of knowledge and the development of their intellectual personality.