In this book Msgr. George A. Kelly (Flynn Professor in Contemporary Problems at St. John's University New York City) provides his own answers to the following questions (and more). What does the Church have over the secular concerns of men? What precisely do Pope's say? What do they mean to imply? Who are the poor? Who are the friends of the poor? What works and does not work? When does the Catholic social actionist leave the Church behind him? He does this by drawing on a long experience as a parish priest and pastor, chancery official, and academic person, he capsulates some Catholic insights which will be helpful to American social activists who recently [1976] have discovered for them selves a new apostolate.