Travis LangleyTravis Langley, PhD, is a professor of psychology at Henderson State University, the author of Batman and Psychology: A Dark and Stormy Knight, and editor of The Walking Dead Psychology: Psych of the Living Dead and Star Wars sychology: Dark Side of the Mind. He regularly speaks on the subjects of heroism and popular culture at psychology conferences, fan conventions like San Diego Comic-Con, and universities throughout the world. Psychology Today carries his online column, "Beyond Heroes and Villains." Read More Read Less