"Great Soviet Encyclopedia" is a publication that was published in the Soviet Union in 1926-1990 and is one of the largest encyclopedic projects in history. In its pages, this encyclopedia covered a wide range of topics - from history and science to culture and technology. It is also known for the fact that it contained many illustrations, maps and tables, which helped the reader to better understand the material. The "Great Soviet Encyclopedia" played an important role in the dissemination of knowledge among the population of the Soviet Union and preserved the cultural heritage.