To communicate, dialogue has well established principles. Communication is a process that must be respected to achieve its objectives. To prepare a broadcast, an investigation, an interview, a report; to know how to treat them and to communicate them to its different listeners in the respect of the rules and principles of the profession in order to attract the attention of its audience and to inform it as close as possible to the reality of their interest: a whole art that is learned from everywhere (Schools of journalism, faculties of the sciences of the information and the communication in universities and on the heap in stations of radios) Yes, to orient those who come from schools and faculties and those who learn on the job, here is a little the role that these few lines ambition to render. Written by a journalist experienced in the journalistic practice and in the university teaching, this guide brings enlightened notions for a journalist finalist of the faculty of sciencesof the information and the communication, of the school of journalism and the journalist.