"Big Soviet Encyclopedia (AB)" is a huge volume publication that became a real treasure trove of knowledge and information for readers during the Soviet period. This encyclopedia contains thousands of articles on a variety of topics: history, geography, literature, science, art, and much more. Each article in the AV encyclopedia is written by professionals in the relevant field, which ensures a high level of information reliability. In addition to textual information, the publication also contains many illustrations, diagrams, maps and tables that help the reader better understand the discussed topics. "Big Soviet Encyclopedia (AB)" became not only a source of knowledge, but also a symbol of culture and education during the past times and continues to be interesting for fans of history and science to this day.