 From 1911 to 1956, Binswanger was medical director of the sanatorium in Kreuzlingen.Binswanger is considered the first physician to combine psychotherapy with existential and phenomenological ideas, a concept he expounds in his 1942 book; "Grundformen und Erkenntnis menschlichen Daseins" (Basic Forms and the Realization of Human "Being-in-the-World").In this work, he explains existential analysis as an empirical science that involves an anthropological approach to the individual essential character of being human.