An Austrian Physician born on My 16, 1856. He is best known for his work
in the study of the unconscious mind and the use of clinical observations in
treating mental diseases and disorders. He studied from his experience that
hypnotism is useful to treat hysteric patients and he used hypnotism in his
own medical practise. He also used interpretation of dreams which is of
fundamental importance is psychiatry. He published his book 'the
interpretation of dreams' in 1900, which made him world famous.