Preben Grønkjær holds a degree as mag.art. (magister artium in History of Ideas from Aarhus University, Denmark) and certifications in the use of Myers-Briggs Type Indicator (MBTI, MBTI II), Jungian Type Index (JTI), and Teamkompasset (The Team Compass). Preben has lectured in Jung’s psychology, including typology, for 35 years at Aarhus University, Folkeuniversitetet (University of Continuing Education), and other educational institutions in DK. He is now also an organizational consultant and coach (trained Ashridge Accredited Executive Business Coach). Preben has published several books and articles in Danish, based on experiences working as a coach and consultant.