The International Psychoanalytical Association (IPA) is an association including 12,000 psychoanalysts as members and works with 70 constituent organizations. It was founded in 1910 by Sigmund Freud, from an idea proposed by Sándor Ferenczi.

Otto Rank was an Austrian psychoanalyst, writer, and philosopher. Born in Vienna, he was one of Sigmund Freud's closest colleagues for 20 years, a prolific writer on psychoanalytic themes, editor of the two leading analytic journals of the era, managing director of Freud's publishing house, and a creative theorist and therapist. In 1926, Rank left Vienna for Paris and, for the remainder of his life, led a successful career as a lecturer, writer, and therapist in France and the United States.