Models, Mental Models, and Representations. Model-Based Reasoning in Conceptual Change N.J. Nersessian. Tracing the Development of Models in the Philosophy of Science D.M. Bailer-Jones. Using Models to Represent Reality R.N. Giere. Models and Diagrams within the Cognitive Field K.J. Knoespel. Theories, Models, and Representations M. Suarez. How Scientists Build Models In Vivo Science as a Window on the Scientific Mind K. Dunbar. Discovery Processes and Mechanisms. A Simulation of Model-Based Reasoning about Disparate Phenomena D.C. Gooding, T.R. Addis. Scientific Discovery and Technological Innovation: Ulcers, Dinosaur Extinction, and the Programming Language Java P. Thagard, D. Croft. A Hierarchy of Models and Electron Microscopy T. Harris. Expansion and Justification of Models: the Exemplary Case of Galileo Galilei V. Raisis. Simplifying Bayesian Inference: the General Case S. Krauss, L. Martignon, U. Hoffrage. Complexity versus Complex Systems: A New Approach to Scientific Discovery F.T. Arecchi. Creative Inferences and Abduction. Model-Based Reasoning in Creative Processes J. Meheus. Model-Based Creative Abduction L. Magnani. Abduction and Geometrical Analysis. Notes on Charles S. Peirce and Edgar Allan Poe I. Niiniluoto. The Hierarchy of Models in Simulation E. Winsberg. Abducting Explanation V.F. Hendricks, J. Faye. Fictionalism and the Logic of 'As If' Conditionals C. Pizzi. Scientific Modeling: A Multilevel Feedback Process J.M. Zytkow. Author Index. Subject Index.