Thomas Staller is a trained mathematician who has served as a managing director and executive board member with various firms in information technology, telecommunications, media and management consulting. As a consultant, coach and trainer, he helps executives and their teams as they undergo change. After several years of first-hand experience with the Reiss Motivation Profile®, he worked together with the University of Luxembourg in developing the LUXXprofile and the ID37 personality assessment. Thomas Staller is an acclaimed expert on personality, motivation and behavior. Cornelia Kirschke is an industrial engineer with extensive experience in marketing and communications management. She has worked with a variety of global media, telecommunications and information technology companies. Her current work as a consultant and interim manager has expanded her marketing expertise to include a deep knowledge of motivational and behavioral psychology.