Stavros Ioannidis is Assistant Professor at the National and Kapodistrian University of Athens. He is principal investigator of the project MECHANISM, funded by the Hellenic Foundation for Research and Innovation. Stathis Psillos is Professor of Philosophy of Science and Metaphysics at the National and Kapodistrian University of Athens. He is the author of Scientific Realism: How Science Tracks Truth (1999) and Causation and Explanation (2002), and editor (with Henrik Lagerlund and Ben Hill) of Reconsidering Causal Powers (2021).

• Introduction; Part I. Ideas of Mechanism: 1. Mechanisms, Then and Now; 2: Extending Mechanism Beyond the two 'Most Catholic Principles of Bodies; Part II. Causation and Mechanism: 3. Mechanisms in Scientific Practice: the Case of Apoptosis; 4. Mechanisms as Causal Pathways; 5: Mechanisms, Causation and Laws; 6: Against Activities; 7: Whither Counterfactuals?; Part III. Beyond New Mechanism: 8. Constitution vs Causation; 9. Multilevel Mechanistic Explanation; 10: Methodological Mechanism.

'As the 'New mechanical philosophy' grows bigger by the day, it is very difficult to make a significant contribution to the field. But this book is an extremely well researched, timely, and interesting piece of work. It offers compelling (philosophical and historical) arguments for the idea that mechanisms in science are to be understood as a methodological stance, which no doubt will spark debate in philosophy of science.' Federica Russo, University of Amsterdam