The "Great Soviet Encyclopedia" is a huge explanatory dictionary that covers a wide range of knowledge from various fields of science, technology, culture and other fields. Due to its volume and depth of content, this encyclopedia was considered one of the most authoritative reference books in the Soviet Union. The Ukrainian version was called the "Great Soviet Encyclopedia" (YAR) and became an important source of information for Ukrainians. The encyclopedia consisted of numerous volumes that included articles on history, geography, nature, technology, art, literature, and much more. Each article contained well-founded information, supported by data and facts, which made the "Great Soviet Encyclopedia" a reliable source of knowledge. Thanks to a large team of authors, editors and experts, the "Big Soviet Encyclopedia" has become a cultural treasure and a symbol of education for millions of readers.