It was developed by Fritz Perls, Laura Perls and Paul Goodman in the 1940s and 1950s, and was first described in the 1951 book Gestalt Therapy.
Gestalt therapy is a form of psychotherapy that emphasizes personal responsibility and focuses on the individual's experience in the present moment, the therapist–client relationship, the environmental and social contexts of a person's life, and the self-regulating adjustments people make as a result of their overall situation.