"Collection of articles which are the joint work of a number of people and designed to serve as a guide for Indian teachers and social workers, to present to them the basic equipment and the techniques necessary to transmit the Christian message in the context of the Church, the school, village or urban activities, the hospital and social institutions." (Jean-Marie Van Bol, Abdelfattah Fakhfakh: The use of mass media in the developing countries. Brussels: CIDESA, 1971 Nr. 142, topic code 54)