Diagrams are an essential part of the most diverse processes of communication and cognition. Indeed, today the production of all kinds of text (including this one) is mediated by diagrammatic tools to be found on computer desktops. Not surprisingly, then, diagrams have become the object of much historical and theoretical work. This book--volume 2 of the Proceedings of the 33rd International Wittgenstein Symposium--is dedicated to this quickly growing field of interdisciplinary research. It includes contributions from philosophy, sociology (space syntax), art history, and history of science. Historically, there is a focus on Otto Neurath and his famous visual language (ISOTYPE), while the new attempts at theorizing diagrams presented here are mainly inspired by Charles Sanders Peirce and Ludwig Wittgenstein.

Autorentext
Richard Heinrich is professor of philosophy at the Department of Philosophy at the University of Vienna. His has worked on Renaissance philosophy, classical modernphilosophy, analytic philosophy and literary aesthetics. His publications include the books Kants Erfahrungsraum (Freiburg 1986), Wittgensteins Grenze (Wien 1993), Wahrheit (Wien 2009); recent articles on Wittgenstein are: Wittgenstein: Sprache, Ausdruck, Leben in Lebensform Wittgenstein. Bilder und Begriffe, edited by Ch. Denker (Wien 2009), 25 33; Critique and Genealogy. Wittgenstein on Reading and Influence in Unsocial Sociabilities Wittgenstein s Sources, edited by Esther Ramharter (Berlin 2011), 265 274.
Elisabeth Nemeth is professor of philosophy at the Department of Philosophy at the University of Vienna and Director Deputy of the Institute Vienna Circle. She has worked on the philosophy and history of Logical Empiricism, Ernst Cassirer s philosophy of science, and Pierre Bourdieu s sociology of science. Her publications include Logical Empiricism and the History and Sociology of Science in: The Cambridge Companion to Logical Empiricism, ed. by T. E. Uebel and A. W. Richardson (Cambridge 2007), 278 302, and Freeing up one s point of view : Neurath s Machian Heritage Compared With Schumpeter s in Otto Neurath s Economics in Context, Vienna Circle Institute Yearbook 13, ed. by E. Nemeth, S. W. Schmitz, T. E. Uebel (Dordrecht 2010), 13 36.
Wolfram Pichler is assistant professor at the Department of Art history at the University of Vienna. His publications include the essays Configurations of the Image in What is an Image, edited by James Elkins and Maja Naef (University Park, PA, forthcoming) and Topologie des Bildes. Im Plural und im Singular in Das Bild im Plural. Mehrteilige Bildformen zwischen Mittelalter und Gegenwart, edited by David Ganz and Felix Thürlemann (Berlin 2010), 111 132 as well as the books Öffnungen: Zur Theorie und Geschichte der Zeichnung, co-edited with Friedrich Teja Bach (Munich, 2009), and Was aus dem Bild fällt. Figuren des Details in Kunst und Literatur, co-edited with Edith Futscher, Stefan Neuner, and Ralph Ubl (Munich, 2007).
David Wagner is an assistant at the Department of Philosophy at the University of Vienna and maintains the department s research platform Tracing Wittgenstein . He is currently writing his Ph.D. thesis on Charles S. Peirce and medieval logic. Wittgenstein-related essays include: Es ist ein Beispiel, bei dem man Gedanken haben kann Wittgenstein liest Hebel in Papers of the 32nd International Wittgenstein Symposium 2009, edited by V. Munz, K. Puhl and J. Wang (Kirchberg 2009), 427 429 as well as Humble Poets? Wittgenstein and Heidegger read Hebel in Unsocial Sociabilities Wittgenstein s Sources, edited by Esther Ramharter (Berlin 2011), 153 166.