I am not a dedicated follower of fashion. When I became a Catholic sixteen years ago, bookshops were full of bestsellers by the so-called New Atheists, men like Sam Harris, Christopher Hitchens and Richard Dawkins. In books with provocative titles like The End Of Faith, God Is Not Great and The God Delusion, they denounced religious faith as stupid, violent, cruel and damaging. An outside observer might have concluded that when I boarded the Barque of Peter I was attaching myself to a doomed and ludicrous enterprise, wholly unsuited to the modern world and perhaps even likely to disappear entirely over the course of the twenty-first century. But Christianity has a way of burying its undertakers, as the saying goes. Although the numerical decline of the faith has continued in Europe and the Anglosphere, the last two decades have seen robust growth in Africa and Asia, and the rise of social media has enabled a great flowering of apologetics, catechesis and evangelisation.