"Great Soviet Encyclopedia (RE)" is a publication that is considered one of the largest and most authoritative sources of knowledge of the Soviet period. It was published in Moscow between 1926 and 1990. The encyclopedia consists of 65 volumes and contains more than 100,000 articles on various topics: from history and culture to natural sciences and technology. The publication of RE was a significant cultural, scientific and educational event for Soviet society, widely used as a source of information for teachers, students, scientists and everyone who was interested in the world. In addition, the encyclopedia was noted for its high level of visibility, high-quality illustrations and graphics. Being a significant monument of Soviet culture and science, the "Great Soviet Encyclopedia" remains an important source of knowledge that is remembered and studied by researchers and collectors of publications from the Soviet period in modern times.