This is the third book this season which deals with the question of teen-agers' sexual morality: Eustace Chesser's Unmarried Love (McKay, p. 663) which was primarily addressed to the young and Helen Puner's Not While You're A Freshman (Coward-McCann p. 842-J-296). Bishop Pike is saying, in somewhat better fashion and with the assurance of a wider audience, exactly what Dr. Chesser said-- ""one misfortune should not be compounded by another"" (viz. pregnancy, or as Bishop Pike extends the area- emotional injury to those involved). Bishop Pike states the case very clearly: we are in the midst of a sexual revolution where two or more points of view exist and he provides a program ""which takes into account the existence of these views"" without censoring either. You may be ""conventional"" or against any sexual activity outside of the marital framework (but if you are, your children may not listen to you) or you may be part of the new ""existential"" ethos. In either case, you should be communicating with your children (it is your responsibility, not the school's or the Church's) at three levels of their development, proceeding from the physical facts of life to the ethical responsibility of those who do believe in and practice the ""new morality."" Bishop Pike is known as one of the most outspoken spokesmen on liberal issues which relate to spiritual and moral conduct and his book is unhesitantly realistic.