This book is designed as a text primarily for college students preparing to teach sex education or "education in the nature of human sexuality and the relations between the sexes" in elementary and secondary schools. An attempt is made by the 13 writers, most of them sociologists or psychologists, to distinguish between the knowledge which the teacher transmits to his students and the knowledge which he himself needs in order to do it. The first 5 chapters concentrate on some of the pedagogical peculiarities which characterize teaching in the area of sex. "Trends in Sex Education" reviews the movement to introduce it into the school curriculum and surveys the current scene. The "how" and "what" of sex education are dealt with in "One Approach to the Age Placement of Concepts and Materials." The students' own stages of lifelong human growth are the focus of "Normal Sociosexual Development.""Some Social and Psychological Aspects of Sex" distinguishes between the roles of teacher and counselor, and "Sex Education in the Community" discusses the role of agencies other than schools. Chapter 6 on masturbation and 7, 8, and 9 on premarital sex standards and interpersonal relationships attempt to provide both information and guidance. Broader sociological aspects are covered in the last 3 chapters--"Sex in the Culture of Poverty,""Changing Concepts of Masculinity and Feminity," and the "Impact of Culture and Values." Lists of references and suggested readings follow most of the chapters. The book will be published in May 1969 by John Hopkins Press, Baltimore, Md. 21218, in paperback and hard cover. (JS)