Working from classic texts of European and American writers―including Melville, James, Nietzsche, Proust, and Wilde―Sedgwick analyzes a turn-of-the-century historical moment in which sexual orientation became as important a demarcation of personhood as gender had been for centuries. In her preface to this updated edition Sedgwick places the book both personally and historically, looking specifically at the horror of the first wave of the AIDS epidemic and its influence on the text.