This pamphlet is designed for adults who have any responsibility for children or youth that may create a need for an understanding of sex education. Chapter One discusses the nature of sex education, including attitudes, love, and sex education in present times. Chapter Two discusses assets of the adult sex education: (1) learning from one's own experience; (2) knowing why one feels the way he does about sex; (3) getting along with the younger generation; (4) setting an example; (5) knowing basic facts about sex; and (6) talking about sex. The next chapter gives basic information: (1) the human plan for reproduction, (2) the male and female reproductive system, and (3) conception, prenatal development, and birth. Chapter Four discusses the stages of sexual development: (1) infancy and early childhood, (2) from nine to twelve years, (3) from the years twelve to fifteen, and (4) older youth. Some ways of learning about sex are given in the final chapter. These include keeping lines of communication open, and learning through the experiences of daily life. Suggestions for school programs and youth agencies are also given. (KJ)