Studying human sexuality -- Sexual anatomy -- The physiology of human sexual responding -- Love, intimacy, and sexual communication -- Contraception : planning and preventing pregnancy -- Sexual behaviors : experiencing sexual pleasure -- Sexual problems and solutions -- Sexually transmitted infections -- Conception, pregnancy, and birth -- Gender : expectations, roles, and behaviors -- Sexual orientation -- Sexual development throughout life -- Sexual aggression and violence : rape, child sexual abuse, and harassment -- Paraphilias : the extremes of sexual behavior -- The sexual marketplace : prostitution and pornography.