The extraordinary range of cultural interests of renowned physicist David Speiser – including the sciences, art, architecture, music, and history of science – has inspired generations of later scientists to look beyond the boundaries of their own disciplines. In this book seventeen scholars pay tribute to his multifaceted career. Contributors: Alessio Ageno, Jean-Pierre Antoine, Sandro Caparrini, Frans A. Cerulus, Sidney D. Drell, David Ritz Finkelstein, Laszlo Grenacs, Donal Hurley, Giuseppe La Rocca, Siegmund Levarie, Bernd Lindemann, Giulio Maltese, Wolfgang K.H. Panofsky, Orietta Pedemonte, Patricia Radelet-de Grave, Luigi A. Radicati di Brozolo, Michael Vandyck, Piero Villaggio, Kim Williams