Grethe van Geffen is expert in diversity & inclusion, decision making processes and change management. She has published currently 13 books and numerous articles. Her company Seba (1997) has a broad experience in different sectors such as health care, police force, large corporates, local and national government and NGO’s. She has given workshops in Austria, Belgium, China, Denmark, Germany, Great Britain, Jordan, Malawi, Morocco, the Netherlands, Poland, Tunisia and the United States of America and is fluent in four languages. Private activities include chairmanship of the Dutch Mensa Foundation and board membership of the Amsterdam Andalusian Orchestra.