"Great Soviet Encyclopedia" is one of the largest publications of the former Soviet Union, covering a wide range of knowledge in various fields of science, technology, culture, history, geography and other fields. The publication consists of numerous volumes, which collect information and materials reflecting the general popular science level in various fields. The "Great Soviet Encyclopedia" was created as an encyclopedic guide for the general population, which aimed to popularize and spread knowledge. This book has become a practical general reference library for modern readers interested in the history, culture and scientific achievements of the past years.