"Great Soviet Encyclopedia (EU)" is a large twenty-nine-volume publishing project of the Soviet era, which has become an important source of information for scientists, teachers, students and people just curious about the world. Contains more than 100 thousand articles on various topics from natural sciences to culture. The editorial board involved the best specialists of various fields of knowledge in the project in order to ensure a high scientific level of the materials. "Great Soviet Encyclopedia (EU)" became a symbol of education and universal knowledge for generations of Soviet citizens.