Book excerpt: Revisits and updates the centrality of the social construction of sexuality, especially in the age of Viagra, FSD (female sexual dysfunction) and the media saturation of sex. Leonore Tiefer is one of the foremost sexologists working in the United States today; she is a well-known and respected scholar who writes engagingly and humorously about a wide array of topics in sexuality to appeal to both students and general readers. Revised and updated with new pieces on the medicalization of sex, FSD (female sexual dysfunction) and the politics of sex, as well as classic pieces found in the original edition, such as "Am I Normal?: The Question of Sex."