Bettina Rodeck, KlampenborgDr. phil., Dipl.-PAd., Dipl.-Des. (interior design), dipl. color consultant and designer IACC. Freelance activity and collaboration with Partnerschaftliche Gestaltungsgruppe Mainz (PGM). Teacher at the Salzburger Seminare fA1/4r Farbe und Umwelt der IACC.Gerhard Meerwein, MainzProfessor at the Fachhochschule in Mainz, architect, interior designer, dipl. color consultant and designer IACC. Partnerschaftliche Gestaltungsgruppe Mainz (PGM). Teacher at the Salzburger Seminare fA1/4r Farbe und Umwelt der IACC.Frank H. Mahnke, Geneva and San DiegoEnvironmental designer and color consultant and designer IACC. International consultant, designer, teacher. Founder and… director of the American Information Center for Color and Environment, president of the IACC. Author of Color, Environment & Human Response (New York: Verlag Van Nostrand Reinhold, 1996). Teacher at the Salzburger Seminare fA1/4r Farbe und Umwelt der IACC.