High Quality Content by WIKIPEDIA articles! Robert Langdon is a fictional Harvard University professor of religious iconology and symbology (a fictional field related to the study of historic symbols, which is not methodologically connected to the actual discipline of Semiotics; in any case, the word should, etymologically speaking, be symbolology, or at least spelled symbollogy.) The character was created by author Dan Brown for the novels and later movies, The Secret, Angels Demons (2000), The Da Vinci Code (2003) and The Lost Symbol (2009).