"Great Soviet Encyclopedia" (ER) is a huge and ambitious publication containing extensive knowledge in various fields of science, culture, history and other aspects of life. The publication includes thousands of articles, illustrations, tables and graphs that help the reader understand and deepen his knowledge of the world. "The Great Soviet Encyclopedia" is an important document of the culture and intellectual development of Soviet society, which strove for the general education of its citizens. The publication is undoubtedly a valuable source of information and a source of knowledge for readers of all ages and interests.