Professor Eamon Duffy is an outstanding scholar who has revolutionised late medieval and Reformation studies through the publication of such books as The Stripping of the Altars (Yale UP). But Duffy has always had a deep pastoral concern, especially with the countless students who have passed through his care and supervision in the University of Cambridge. In his more popular writings, Professor Duffy has wrestled with the problems of being a Christian and a Catholic in the modern world and in this new book, he sets out the key issues to his mind, for any intelligent person who needs to make sense of being a Catholic today. Books of this kind are rare and any new publication from Professor Duffy is eagerly awaited and very widely reviewed.