Sandra Miesel is a medievalist and author. She has written hundreds of articles for the Catholic press, chiefly on history, art, and hagiography, and has spoken at religious and academic conferences, appeared on EWTN, and given numerous radio interviews. She is co-author of The Da Vinci Hoax: Exposing the Errors in The Da Vinci Code with Carl E. Olson and The Pied Piper of Atheism: Philip Pullman and Children's Fantasy with Catholic journalist and canon lawyer Pete Vere. She holds master's degrees in biochemistry and medieval history from the University of Illinois.