Edited collection examining the ways in which models are used in modern science.

Preface; 1. Introduction Margaret Morrison and Mary S. Morgan; 2. Models as mediating instruments Margaret Morrison and Mary S. Morgan; 3. Models as autonomous agents Margaret Morrison; 4. Built-in justification Marcel Boumans; 5. The Ising model, computer simulation, and universal physics R. I. G. Hughes; 6. Techniques of modelling and paper-tools in classical chemistry Ursula Klein; 7. The role of models in the application of scientific theories: epistemological implications Mauricio Suarez; 8. Knife edge caricature modelling: the case of Marx's reproduction schema Geert Reuten; 9. Models and the limits of theory: quantum Hamiltonians and the BCS model of superconductivity Nancy Cartwright; 10. Past measurement and future prediction Adrienne van den Bogaard; 11. Models and stories in Hadron physics Stephan Hartmann; 12. Learning from models Mary S. Morgan.