Acknowledgments

We thank the participants of our meetings, who have crucially contributed to the fulfillment of the symbol interpretation in this book through their experiences and observations. Furthermore, we thank all of our colleagues, from whom we have learned a lot, namely Margarete Petersen, Luisa Francia, Rachel Pollack, Marion Guekos-Hollenstein, Judith Bärtschi, Lilo Schwarz, Hajo Banzhaf, Gerd B. Ziegler, Charles F. Frey, Eckhard Graf, Jim Wanless, Klausbernd Vollmar, and Ernst Ott. Likewise we thank Kirsten Buchholzer for the editorial work on this book.—E.B. / J.F.