Richard Carrier is the author of many books and numerous articles online and in print. His avid readers span the world from Hong Kong to Poland. With a Ph.D. in ancient history from Columbia University, he specializes in the modern philosophy of naturalism and humanism, and the origins of Christianity and the intellectual history of Greece and Rome, with particular expertise in ancient philosophy, science and technology. He is also a noted defender of scientific and moral realism, Bayesian reasoning, and historical methods.