In Sexual Investigations, Soble takes a rigorous yet user-friendly look at things sexual: the nature of sexual activity, the ethics of sexual conduct, pornography, masturbation, perversion, contraception and abortion, date rape, prostitution, and both the beauty and the ugliness of the sexual body. What, Soble asks, defines "healthy" sexuality? How firm are the distinctions among rape, seduction, and consent? When is sexual material degrading to women? This sweeping examination of the philosophical, ethical, and political issues surrounding human sexuality is as learned and thoughtful as it is entertaining.