John Langdon (typographer) Langdon is known mostly through his association with Dan Brown, and the novels "Angels & Demons", "The Da Vinci Code," "The Lost Symbol, Inferno, and Origin". The protagonist of these novels was named Robert Langdon as a tribute to John Langdon, and he will continue to be so for his next 12 books, an estimate given by Dan Brown himself. Langdon is now a professor of typography and corporate identity at Drexel University in Philadelphia. He continues to do work on ambigrams, as well and fine art works that incorporate language, type, and philosophy. Langdon credits his paternal grandparents for
George Hayduke (character) Hayduke" has brought the Hayduke character to life in a well-known series of revenge books. Hayduke states that Edward Abbey was his mentor and says "The Monkey Wrench Gang" inspired the founding of "Earth First!". George Hayduke (character) George Washington Hayduke is a fictional character in Edward Abbey's novels "The Monkey Wrench Gang" and "Hayduke Lives!" Hayduke is an ex-Green Beret, one-time explosives expert and medic in the Vietnam War; and an American environmentalist hero. The specific cultural use of the term Hayduke is derived from this character. The character of Hayduke was based on his friend and author, Doug