Groups of all kinds have an extraordinary influence on our mental and interpersonal development.
As early as 1961 Peter Kutter had the good fortune during the Psychotherapy Weeks at Lindau to become a part of a self-experience group; led by Erich Lindemann, former head of psychiatry at Massachusetts General Hospital in Boston, founding father of the Mental Health movement, researcher into grief, and civilization anthropologist. In 1972 Kutter visited him in Boston and Palo Alto.
In 1964 Kutter began analytic group psychotherapy in his private practice. The first four groups became the subject of his publication "Elemente der Gruppentherapie" (Elements of Group Therapy) (see Publications).
He attained further experience at the seminars inaugurated by Michael-Lukas Moeller with trainers from the London Group Society such as Johanna Brieger, Adele Mittwoch, Liesel Hearst and Gregory van der Klej.
In 1992 Tobias Brocher believed Peter Kutter was capable of establishing the special option “Work with Groups” at the Institute of Social Pedagogy and Adult Education at the Free University in Berlin. Ernst-Günther Skiba, Dietlind Eckensberger and Knut Baering were also involved. The experiences gained then were published in the book "Sozialarbeit und Psychoanalyse" (Social work and psychoanalysis) (see Publications).
Further articles on group psychoanalysis appeared in various journals later on.