Rare first edition in English of Freud's classic study of the human psyche. Octavo, original cloth. Authorized translation by Joan Riviere. In near fine condition. An exceptional example. An analytical study of the human psyche and one of the fundamental texts in the development of psychoanalysis, Sigmund Freud's The Ego and the Id develops a line of reasoning as a groundwork for explaining various (or perhaps all) psychological conditions, pathological and non-pathological alike. The book was first published in German as Das Ich und das Es in the third week of April 1923, and later in English by Leonard and Virginia Woolf at the Hogarth Press.