The "Great Soviet Encyclopedia" is a large-scale publishing project of the last century, which became an invaluable source of knowledge for readers throughout the Soviet space. In its 30 volumes, this encyclopedia covered a wide range of topics - from history and politics to science, technology and culture. The edition contained a large number of illustrations, maps and tables, which made the material more accessible to understanding. The "Great Soviet Encyclopedia" has become an invaluable guide for schoolchildren, students, scientists and all lovers of general information, which has helped in deepening knowledge about the world and its functioning for generations.