"Great Soviet Encyclopedia" (ASH) is one of the largest publications developed in Soviet times, which contains a wide range of information on various topics. Published in 65 volumes, this encyclopedia covers all aspects of knowledge and life, from history, culture and science to technology, art and sports. The texts are written quite voluminously and in detail, and illustrations, tables and diagrams help in learning the material. The "Great Soviet Encyclopedia" is not only a source of information, but also a kind of window into the world of knowledge and culture of the past years.