He is faculty member of the Austrian Association for Gestalt Theoretical Psychotherapy (ÖAGP).
1992-2011 he served as an expert member of the Psychotherapy Advisory Council of the Austrian Federal Ministry for Health.
The third appeared in 2018, a collection of works of the German Gestalt psychologist, sports psychologist and lucid dreams researcher Paul Tholey ("Gestalttheorie von Sport, Klartraum und Bewusstsein").
The fourth, co-edited with Marianne Soff (Karlsruhe, Germany), was published in 2022: it is the revised and expanded third edition of Gestalt psychologist Wolfgang Metzger's fundamental work "Schöpferische Freiheit - Gestalttheorie des Lebendigen" (Creative Freedom - Gestalt theory of the living).
The fifth, finally, is the anthology "Essentials of Gestalt Theoretical Psychotherapy", published in 2022, offering for the first time in English an insight into the guiding ideas of this integrative psychotherapy method, authored by psychotherapists from Austria, Germany, Italy, and the United States.