Sigmund Freud (born May 6, 1856, Freiberg, Austrian Empire [now Příbor, Czech Republic] – died September 23, 1939, London, England) was an Austrian neurologist and famous thinker, best known as the founder of psychoanalysis.
Freud dealt with various topics related to human mind, such as child sexuality, libido, and the ego. He formulated several theories, including the concepts of psychic energy, infantile sexuality, Oedipus complex, repression and the unconscious mind.
Throughout his life, Sigmund Freud published dozens of books. Most notable are Studies in Hysteria (1895), The Interpretation of Dreams (1900), The Psychopathology of Everyday Life (1901), Three Essays on the Theory of Sexuality (1905), Fragment of an Analysis of a Case of Hysteria (1905), The Ego and the Id (1923), Civilization and its Discontents (1930) and Moses and Monotheism (1939).
Freud is considered as one of the most influential, and at the same time controversial, minds of the 20th century.