While contemporary studies have paid renewed attention to the psychoanalytic theory of sexuality and routinely reference Sigmund Freud, they seldom engage direc

This early work by Sigmund Freud was originally published in 1908 and we are now republishing it with a brand new introductory biography. 'On the Sexual Theorie

In his later work, Freud proposed that the human psyche could be divided into three parts: Id, ego and super-ego. Freud discussed this model in the 1920 essay B