Joseph A. Tunzi of JAT publishing began his career in Chicago radio. He is widely acknowledged as one of the most reputable authorities on Rock and Pop music specializing in Elvis Presley, The Beatles, and Frank Sinatra. Photographs from his own photo agency have appeared in the liner notes to numerous audio releases as well as the front and back cover art. He has appeared in magazines such as Mojo, Time, People, and T.V. Guide.