"Big Soviet Encyclopedia" is a publication that has become an intellectual treasure and a symbol of socio-political changes in the last century. The encyclopedia, first published in 1926, maintains an undeniable authority among Ukrainian readers as a source of comprehensive knowledge about history, culture, science, technology and other aspects of life. The "Great Soviet Encyclopedia" is impressive with the volume and variety of topics it covers. Over the years, the publication was constantly replenished and updated, reflecting new discoveries, events and scientific achievements. Its pages contain valuable articles, illustrations, tables, diagrams and cartographic material. Readers of the "Great Soviet Encyclopedia" have the opportunity to immerse themselves in the world of knowledge and expand their horizons. This is a very valuable publication that will become an integral part of any home library and will help to better understand the past and the present.