Throughout the first half of the 20th century, both as an Anglican and as a Roman Catholic, Ronald Knox was a well-known part of the English literary landscape. He was a favored preacher for occasions great and small; his articles on a host of topics found a place in the newspapers and monthly literary magazines; his voice was heard often on the BBC. He wrote numerous popular spiritual and literary works including The Belief of Catholics, Captive Flames, The Hidden Stream and Pastoral and Occasional Sermons.