Frederick or Friedrich Salomon Perls (July 8 1893, Berlin - March 14 1970, Chicago) entered the history as Fritz Perls, a famous psychiatrist and psychotherapist. He was a Jew born in Germany, who developed absolutely new approach in psychotherapy. According to this theory, one of the primary objectives of Gestalt therapy is the ability to restore the self-awareness which is lost when a psychological disorder becomes evident. This is accomplished by restoring the individual's ability to differentiate, which helps the individual to identify what is and what is not a true part of the self, what provides the individual with a sense of self-realization and achievement and what leads to frustration. Thanks to him the term of Gestalt therapy came into view. It is based on Gestalt psychology and Hans-Jurgen Walter's Gestalt Theory Psychotherapy. His wife Laura Perls also contributed to the development of the Gestalt psychotherapy.
- Fritz Perls: Gestalt Therapy. A nearly forgotten interview with Fritz Perls (the co-founder of Gestalt Therapy) by Adelaide Bry
- Finding Self Through Gestalt Therapy, a transcript of a talk given at the Cooper Union by Frederick Perls in 1957
- Psychiatry in a New Key from the Unpublished Manuscripts of Fritz Perls
- Planned Psychotherapy by Frederick Perls. A talk given in the late 1940s at the William Alanson White Institute in New York City, "Planned Psychotherapy" predates the articulation of Gestalt therapy by a few years. Perls discusses in detail his developing use of focusing on the "here and now."
- Growing Up Rugged: Fritz Perls and Gestalt Therapy by National Book Award winner Ernest Becker. Delivered as a talk shortly after Perls's death in 1970.
- Excerpts from an interview with Dick Price conducted by Wade Hudson
- Frederick Perls: A Son's Reflections, by Stephen Perls
- Edward Rosenfeld: An Oral History of Gestalt Therapy Part 1. A conversation with Laura Perls