"Great Soviet Encyclopedia" is the world's largest publication of its kind, which was published in 1926-1947. This encyclopedia contains more than 100 thousand articles on more than 65 thousand pages, which cover a wide range of knowledge in the field of science, culture, technology, history, geography and other fields. The texts are written in accessible and specific language, which makes this encyclopedia a useful source of information for a wide range of readers. It is an inexhaustible source of knowledge about the history of the last century, reflecting the world not only in Soviet times, but also providing information on various aspects of world culture. "Big Soviet Encyclopedia" is not only an encyclopedic guide, but also a kind of history of culture and science in the last century.