"Great Soviet Encyclopedia (CD)" is a huge scientific publication that includes knowledge from all fields of science, technology, culture, history, geography and many other areas. This encyclopedia was published between 1926 and 1947, and is considered one of the largest scientific publications of the last century. The "Great Soviet Encyclopedia" contained more than 100,000 articles, factual data, illustrations, cartographic materials covering all aspects of knowledge and worldview of Soviet society. Each volume of the encyclopedia was saturated with information that was of great importance for the education and culture of the people. The "Great Soviet Encyclopedia" became a symbol of the scientific and cognitive work of Soviet society and for many years was a source of knowledge for millions of people. This encyclopedia remains an important source of information for both scholars and the general public who value knowledge and culture.