During the 1950s, companies aiming for international markets demanded new theories and methods of communication. Ideas regarding cybernetics, systems analysis, new accounting practices, and budgetary principles as well as theories of information, communication, marketing, public relations, and organization were discussed at conferences, seminars, and courses, and in articles and books. At the same time, new technologies changed corporate communication, from a loose-leaf accounting system to mechanical and electronic business machines, from written texts and oral presentations to slide shows,...