edited by Christof Metzger ; with a foreword by Klaus Albrecht Schröder ; essays by Christof Metzger and Julia Zaunbauer ; and texts by Andrew John Martin, Christof Metzger, Erwin Pokorny, and Julia Zaunbauer ; [exhibition curator, Christof Metzger ; translations (German to English), Michael H. Wolfson, Ian Pepper]