"The Great Soviet Encyclopedia" is a huge explanatory publication that was published in the Soviet Union in 1926–1990. This voluminous resource contains a huge amount of knowledge from various fields of science, culture, history, technology, art and many others. The "Great Soviet Encyclopedia" presents not only theoretical aspects, but also practical advice and instructions, which make it an indispensable source of knowledge for a wide range of readers. This book is an important scientific work and document of the cultural history of the Soviet Union.