By Barbara Findlay Schenck
By John Fraser-Robinson
By Jeffrey Gitomer
By Kathleen Hall Jamieson (Professor and Dean, Annenberg School for Communication, Professor and Dean, University of Pennsylvania)
By Eric Giguere
By Laura Brill
By Ricardo Fayet
By James Surowiecki
By Gillian Dyer
By Trevor Millum
By David Ogilvy
By erving goffman
By Sut Jhally
By Ray Edwards
By Howard Tumber (City University London, UK), Silvio Waisbord (George Washington University, USA)
By Terence A. Shimp
By Don Schultz, Heidi Schultz
By Tom Duncan, Sandra E. Moriarty
By Philip Kitchen, Patrick de Pelsmacker, Lynne Eagle, Don E. Schultz
By Ze Zook, PR Smith
By Robert Opie
By James Garvey
By John Clare
By Allen P. Adamson
By G. Mazzalovo
By David Burgos, Ola Mobolade
By D. Sutton
By Tim. Ambler