The founder of psychoanalysis—a clinical method for treating mental disorders through dialogue between a psychoanalyst and a patient—Sigmund Freud was born in 1856 in the Moravian town of Freiberg in the Austro-Hungarian Empire. Freud’s medical career began in 1882 when he entered the Vienna General Hospital. He worked in the various departments of the hospital and spent time as a clinical assistant at Theodor Meynert’s psychiatric clinic. in 1885, Freud was appointed as a university lecturer in neuropathology. Freud co-authored Studies on Hysteria with Josef Breuer. Published in 1895, it described the evolution of his clinical methods. the Interpretation of Dreams was published in 1899. Considered to be his masterwork, it introduces Freud’s theory of the unconscious with respect to dream interpretation. On Dream, an abridged version of the Interpretation of Dreams was published in 1901. His other significant works include the Psychopathology of Everyday Life (1901), Jokes and their Relation to the Unconscious (1905), Three Essays on the Theory of Sexuality (1905), Introduction to Psychoanalysis (1916-17) and Moses and Monotheism (1939