Frédéric Martel is a French researcher and writer. He is the author of ten books, including In the Closet of the Vatican, which was a New York Times bestseller and has been translated into 20 languages. The book was a number one bestseller in France for eight weeks and became a bestseller in 15 other countries. As a journalist, Martel also hosts a weekly radio show on media and culture for French National Public Radio. He lives in Paris.