Sigmund Freud (6 May 1856 – 23 September 1939) was an Austrian neurologist and the founder of psychoanalysis. (Wikipedia)

Three Essays on the Theory of Sexuality
Sigmund Freud

Totem and Taboo
Sigmund Freud

Leonardo da Vinci
Sigmund Freud

Dream Psychology
Sigmund Freud

A General Introduction to Psychoanalysis
Sigmund Freud