John Zizioulas, Metropolitan of Pergamon (Patriarchate of Constantinople), is one of the most profound Orthodox theologians of the 20th-21st centuries. His book Being as Communication, first published in English in 1985, became widely known throughout the world among Christians of various denominations, presenting an Orthodox development of the doctrine of man and the fullness of humanity achieved through personality, and of the Church called to live in communion in the image of the Trinity life of God.The book has been translated into Russian for the first time in its entirety. It is intended for theologians, philosophers, teachers and students of theological and philosophical universities, as well as for all those who are deeply interested in ecclesiology and theology of the individual.