Face-to-face contact is by no means the only form of communication and during the last two hundred years the art of mass communication has become one of the (36) factors of contemporary society. Two things, above others, have caused the enormous growth of the communication industry. Firstly, (37) has led to advances in printing, telecommunications, photography, radio and television. Secondly, speed has (38) the transmission and reception of communications so that local news often takes a back seat to national news, which itself is often almost (39) by international news. No longer is the (40) of information confined to a privileged (41) . In the last century the wealthy people with their own library were indeed fortunate, but today there are public libraries. Forty years ago people used to (42) to the cinema, but now far more people sit at home and turn on the TV to watch a programme that is being (43) into millions of homes. Communication is no longer merely concerned with the transmission of information. (44) . The printing, broadcasting and advertising industries (45) . Although a great deal of the material communicated by the mass media is very valuable to the individual and to the society, (46) .