This book by the famous psychologist and sociologist I.S. Kona is unique. It summarizes modern data on same-sex love not only from the standpoint of biology and medicine, but also from the point of view of the social and human sciences and psychology. The author examines in detail various theories of homosexuality, the history and ethnography of same-sex relationships among the peoples of the world, the psychological characteristics of same-sex love and eroticism, the problems of same-sex marriage, etc. The history and position of those who love others in modern Russia are covered in detail.