Karen Armstrong is one of the world's leading commentators on religious affairs. She spent seven years as a Roman Catholic nun, but left her teaching order in 1969 to read English at St Anne's College, Oxford. In 1982, she became a full time writer and broadcaster. She is a best-selling author of over 16 books. An accomplished writer and passionate campaigner for religious liberty, Armstrong has addressed members of the United States Congress and the Senate and has participated in the World Economic Forum.