"This book contains a series of articles by the best authorities — The process of communication; how to gain the attention; how meaning is transferred from one subjective field to another; how attitudes and opinions are formed and changed; how group-membership, role concepts and the social structure relate to these processes." (Jean-Marie Van Bol, Abdelfattah Fakhfakh: The use of mass media in the developing countries. Brussels: CIDESA, 1971 Nr. 2081, topic code 010)