The Ego and the Id

The Ego and the Id
AuthorSigmund Freud
Original titleDas Ich und das Es
PublisherInternationaler Psycho- analytischer Verlag (Vienna), W. W. Norton & Company
Publication date
April 1923

The Ego and the Id (German: Das Ich und das Es) is a prominent paper by Sigmund Freud, the founder of psychoanalysis. It is an analytical study of the human psyche outlining his theories of the psychodynamics of the id, ego and super-ego, which is of fundamental importance in the development of psychoanalysis. The study was conducted over years of research and was first published in the third week of April 1923.