Dan Brown 's newest novel Origin in the Rober Langdon series was published on October 3 , 2017 .
Professor Robert Langdon is a fictional character created by author Dan Brown for his Robert Langdon book series : Angels & Demons ( 2000 ) , The Da Vinci Code ( 2003 ) , The Lost Symbol ( 2009 ) , and Inferno ( 2013 ) .
Robert Langdon