"Big Soviet Encyclopedia" is a publication that has become a real treasure of knowledge for generations of Soviet citizens. The first volumes of the encyclopedia were published in 1926, and the completed version of 65 volumes was published in 1978. It contains a huge range of information from various fields of knowledge: from history, geography and politics to science, technology and art. The "Great Soviet Encyclopedia" has become an integral part of libraries in many homes and educational institutions. It was a source of important information for schoolchildren, students, scientists and just curious people. Each volume of the encyclopedia was filled with interesting articles, illustrations and reference material. This encyclopedia not only helped to broaden the readers' outlook, but also contributed to the enrichment of cultural heritage and the preservation of the history of Soviet society. The "Great Soviet Encyclopedia" remains a symbol of the strength and depth of Soviet culture and education.