Michel Foucaults The History of Sexualitythe first volume of which was published in 1976exerts a vast influence across the humanities and social sciences. However, Foucaults interest in the history of sexuality began as early as the 1960s, when he taught two courses on the subject. These lectures offer crucial insight into the development of Foucaults thought yet have remained unpublished until recently. This book presents Foucaults lectures on sexuality for the first time in English. In the first series, held at the University of Clermont-Ferrand in 1964, Foucault asks how sexuality comes to be constituted as a scientific body of knowledge within Western culture and why it derived from the analysis of perversionsmorbidity, homosexuality, fetishism. The subsequent course, held at the experimental university at Vincennes in 1969, shows how Foucaults theories were reoriented by the events of May 1968; he refocuses on the regulatory nature of the discourse of sexuality and how it serves economic, social, and political ends. Examining creators of political and literary utopias in the nineteenth and twentieth centuries, from Sade to Fourier to Marcuse, who attempted to integrate natural sexualities, including transgressive forms, into social and economic life, Foucault elaborates a double critique of the naturalization and the liberation of sexuality. Together, the lectures span a range of interests, from abnormality to heterotopias to ideology, and they offer an unprecedented glimpse into the evolution of Foucaults transformative thinking on sexuality.