He's the professor of symbology who is the protagonist of "The Da Vinci Code" & "Angels & Demons"
I 
remember thinking though, "He's written these to be made into movies", rather... [DOC] [TLE] Angels & Demons (2009) - IMDb [PAR] Mystery  Harvard symbologist Robert Langdon works to solve a murder and 
prevent a terrorist ... Angels & Demons Poster ....