I WISH TO THANK THE BERLIN VERLAG, and especially my publisher, Elisabeth Ruge, together with Julia Graf and Fridolin Schley, for all their suggestions and corrections.
Special thanks as well to Silvia Bovenschen for cordial conversations and advice that accompanied the book in its initial and final stages.
I received encouragement and criticism from: Ursula Bode, Christoph Brumme, Jörg Fessmann, Ulf Fischer, Matthias Flügge, Robert Fürst, Ulrike Gärtner, Thomas Geiger, Martin Jankowski, Reinhard John, Simone Kollmorgen, Katja Lange-Müller, Carsten Ludwig, Elena Nährlich, Jutta Penndorf, Sarah Schumann, Lutz Seiler, Elisabeth Türmer, Vera Türmer, Frank Witzel, John Woods, Johann Ziehlke.
I also owe thanks to Mario Gädtke for allowing me to use his personal report, and to Jens Löffler for typesetting the book.
The Joseph Breitbach Prize made it possible for me to work without financial worries. I likewise received generous support from the Berlin Senate Office for Science, Research, and Culture; Deutsches Haus in New York; and the Kulturfonds Foundation.
Above all, however, I want to thank Natalia Bensch and Christa Schulze, to whom this book is dedicated.