St. Peter Damian's Book of Gomorrah: A Moral Blueprint for Our Times, Both Volumes

It appears that whenever Holy Mother Church has had a great need for a special kind of saint for a particular age, God, in His infinite mercy, has never failed to fill that need. And so, in the year 1007 A.D., a boy child was born to a noble but poor family in the ancient Roman city of Ravenna, who would become a Doctor of the Church, a precursor of the Hildebrandine reform in the Church and a key figure in the moral and spiritual reformation of the lax and incontinent clergy of his time.