Joseph Campbell. His writings on semiotics, comparative religion and mythology (in particular ‘The Power of Myth’ and ‘The Hero With a Thousand Faces’) helped inspire the framework on which I built my character Robert Langdon. The PBS interview series with Joseph Campbell and Bill Moyers was hands down the most thought-provoking conversation I’ve ever witnessed. Campbell’s breadth of knowledge about the origins of religious belief enabled him to respond with clarity and logic to some very challenging questions about contradictions inherent in faith, religion, and scripture. I remember admiring Campbell’s matter-of-fact responses and wanting my own character Langdon to project that same respectful understanding when faced with complex spiritual issues.