A well renowned German design author, lecturer, photographer, artist, web entrepreneur and book creator. In his numerous publications, most of them translated into other languages, he shows himself as an expert of design history on an international level. His website formguide is the biggest information platform on German design. At the same time he is responsible for the art of his own books. Some of his latest titles are on classic topics like Braun Design (2008), Bauhaus Design (2009) and Autodesign International (201). His book Und kann man darauf auch sitzen? / And can you actually sit on it?(2011) is an often humorous investigation into the legends and the language of design.