A set of 10 articles which first appeared in the Japanese periodical "Studies in Broadcasting" comprises this collection. Of the four essays dealing with Japan, one covers the historical changes in its broadcasting policies, treats the legal character of the Japanese public broadcasting company (Nippon Hoso Kyokai), and also reports on the social and economic status of broadcasting in Japan. The other three cover policies governing program selection and production, the effect of mass communication on voting behavior, and recent research on the effect of television viewing on children. The remaining articles summarize the techniques, trends, and areas of emphasis in broadcasting research in the United States, Canada, France, Germany, Great Britain, and Scandinavia. (JK/JY)