Since 1991, he has been the head of the Design Zentrum Nordrhein Westfalen. During these years he has published books and compendia about the subject of design and he has accepted invitations to lecture all over the world.
He has held a leadership position at Design Zentrum Nordrhein Westfalen since 1991, and in that capacity, he has produced written works and delivered talks on design-related topics, both domestically and internationally.