The book presented to the attention of Orthodox readers contains the biography of the holy righteous Alexy, the history of his canonization, a story about the spiritual community he created, the spiritual heritage of the saint - excerpts from his sermons, as well as an essay about the Church of St. Nicholas in Klenniki. The book contains three appendices: the first is the memoirs of eyewitnesses about the holy righteous Alexy, the second is the words about him by modern clergy and church leaders, and the third is a small study of Fr. Pavel Florensky about the holy righteous Alexy.