Leo Bogart was a sociologist, author and marketing specialist, known for studying the role of the mass media in culture. Dr. Bogart, who also studied advertising and public opinion had written nearly a dozen books. He served for many years as the executive vice president and general manager of the Newspaper Advertising Bureau. He taught marketing at New York University, Columbia University and the Illinois Institute of Technology. He was a senior fellow at the Center for Media Studies at Columbia and a Fulbright research fellow in France. He was writing a column for Presstime, the magazine of the Newspaper Association of America. He passed away in 2005 when he was 84.