Seminar paper from the year 2002 in the subject Engineering - Industrial Engineering and Management, grade: 2,0 (B), University of Applied Sciences Bremen (Industrial Engineering), course: Organisational Behaviour, 7 entries in the bibliography, language: English, abstract: Everywhere in the world communication is present 24 hours a day, 365 days a year. But this rather complex interaction of two or more people can hardly be defined and a whole lot of scientists (biologists, evolution theorists, sociologists, psychologists and medical personnel) do research. In the past there was a famous example what could happen, when communication failed. The building of the tower of Babel, where god punished the mankind because of their inability to communicate and to come to an agreement. Therefore, the bible says, the people have different languages. And this caused by a lack of communication. Somehow irrational. The second example is the modern communication. Almost everyone has got a mobile, one telephone at home, one in the office. Furthermore one or more faxes, a lot of different eMails which have to be controlled every now and then. Otherwise you are "out" of the communication process by the blink of an eye. Because communication is nowadays everywhere, anytime and only little private and personal, a little poem (in German, I am afraid) shows the development in a literal way: "immer mehr und immer schneller k nnen wir einander mitteilen da wir immer mehr und immer schneller immer mehr und immer schneller einander mitteilen m sen" (Helmut Seethaler) Because of our focus on corporations, communication as such in companies (internal) and of companies (external) will be topic of our following text.