Stephen Mansfield is an American author and speaker, recognized for his New York Times bestselling books on history, modern culture, religion, and men's issues. He gained global attention with "The Faith of George W. Bush" (2003), a New York Times bestseller that Time magazine credited with influencing the 2004 US presidential election and served as a source for Oliver Stone’s film "W." His subsequent international bestseller, "The Faith of Barack Obama," further established his reputation.