Studies in the Psychology of Sex, Volume 1: The Evolution of Modesty; the Phenomena of Sexual Periodicity; Auto-Erotism

In 1897, a British physician dared to ask questions no one else would: What is modesty, really? Why do sexual urges pulse through us in cycles? What happens in the mind during solitary desire? Havelock Ellis's first volume in his revolutionary series broke centuries of silence, applying scientific method to the most taboo corner of human experience. Drawing on anthropological observations, historical texts, and case studies from diverse cultures, Ellis examined how societies construct ideas around shame, desire, and the body. He argued that understanding sexuality without moralistic bias was essential to human flourishing. The book covers what Ellis termed sexual periodicity, the rhythmic nature of desire, and auto-eroticism, treating all with clinical precision and surprising compassion. Though controversial, it laid the groundwork for modern sexology and remains a landmark for anyone interested in the history of ideas about the self.