The book contains historical documents of fraternities, extracts from those textbooks used in fraternal schools, original and translated works of fraternity figures, including works by Job Boretsky, Meletiy Smotritsky, Thomas Evlevich, Kasyan Sakovich, Kirill Tranquillion Stavrovetsky, which reflect the development of philosophical thought of the Ukrainian people, humanistic and reformation ideas, ties with the people's liberation struggle against foreign oppression. The texts of the monuments are prepared for publication by historians of philosophy and literature, as well as linguists.