"Great Soviet Encyclopedia" is a large historical publication that was published in the Soviet Union in 1926-1990. This encyclopedia is an important source of information on all aspects of life, culture, science, technology and history of Soviet society. In her articles, she covers a wide range of topics - from philosophy and politics to literature and art. Due to the careful approach of the editors and the high scientific level of the materials, the "Big Soviet Encyclopedia" has become the main source of knowledge for many scientists, students and the general public. Over time, it became not only an encyclopedic publication, but also a kind of encyclopedia of the Soviet worldview and ideology. Ukrainian readers had the opportunity to use the "Great Soviet Encyclopedia" in the Ukrainian language, which contributed to the spread of information about world culture, science and history among Ukrainian readers.