Sigmund Freud
Sigmund Freud (May 6, 1856-September 23, 1939) was an Austrian neurologist and a pioneer in psychology. His most important works include The Interpretation of Dreams, Three Essays on the Theory of Sexuality, Totem and Taboo, Introductory Lectures on Psychoanalysis, The Ego and the Id, and Civilization and Its Discontents. A proficient reader in eight languages, Freud excelled as a student and studied medicine at the University of Vienna, graduating in 1881. A pioneer in the fields of psychoanalysis and psychotherapy, many of his theories and techniques persist and continue to influence psychology.