Forthright without being clinical, and religious without being ""preachy"", these well known writers and practitioners in the field of sex and family relations have now produced a source-book which Christian leaders everywhere will be eager to use as a guide for study and discussion. The first part summarizes the biblical and historical bases of Christian views on sex and marriage, beginning with the New Testament, on through the patristic period, to Luther and Calvin and down to the position of the Anglican Church today. Then follows a summary of the denominational pronouncements in this century on questions of sex, marriage and family life. After this there are eleven more chapters on specific questions of marriage, teen-age involvements, sex behavior, and control of family size in terms of individual well-being and social welfare. Each subject is dealt with by one of America's leading scientists, each an authority in his or her area of study. Here is a fruitful meeting of the medical, psychological and social sciences together indicating the way which leads to the most satisfying Christian family life. Discussion subjects and good bibliographies are added to make this a book of maximum usefulness for leaders and counselors of youth. It is among the best available, and all Church libraries should have several copies.