Elliott Sober is Hans Reichenbach Professor and William F. Vilas Research Professor in the Department of Philosophy, University of Wisconsin, Madison. In 2014 the Philosophy of Science Association awarded him the Carl Gustav Hempel Award for lifetime achievement in philosophy of science. His publications include: Evidence and Evolution: The Logic Behind the Science (2008), Did Darwin Write the Origin Backwards?: Philosophical Essays on Darwin's Theory (2011) and Unto Others: The Evolution and Psychology of Unselfish Behavior (1998, co-authored with David Wilson).

'Sober's treatment of the role of Ockham's razor in scientific methodology is, quite simply, the best that one can find in the philosophical literature today. With excursions into such diverse topics as model construction, Bayesian statistics, phylogenetic inference, philosophy of mind, and general philosophical methodology, readers of all stripes will find this book rewarding.' James M. Joyce, Cooper Harold Langford Collegiate Professor of Philosophy, University of Michigan, Ann Arbor

• Introduction; 1. A history of parsimony in thin slices (from Aristotle to Morgan); 2. The probabilistic turn; 3. Parsimony in evolutionary biology - phylogenetic inference; 4. Parsimony in psychology - chimpanzee mind-reading; 5. Parsimony in philosophy; References.

Elliott Sober is Hans Reichenbach Professor and William F. Vilas Research Professor in the Department of Philosophy, University of Wisconsin, Madison. In 2014 the Philosophy of Science Association awarded him the Carl Gustav Hempel Award for lifetime achievement in philosophy of science. His publications include: Evidence and Evolution: The Logic Behind the Science (2008), Did Darwin Write the Origin Backwards?: Philosophical Essays on Darwin's Theory (2011) and Unto Others: The Evolution and Psychology of Unselfish Behavior (1998, co-authored with David Wilson).

'Sober's treatment of the role of Ockham's razor in scientific methodology is, quite simply, the best that one can find in the philosophical literature today. With excursions into such diverse topics as model construction, Bayesian statistics, phylogenetic inference, philosophy of mind, and general philosophical methodology, readers of all stripes will find this book rewarding.' James M. Joyce, Cooper Harold Langford Collegiate Professor of Philosophy, University of Michigan, Ann Arbor

• Introduction; 1. A history of parsimony in thin slices (from Aristotle to Morgan); 2. The probabilistic turn; 3. Parsimony in evolutionary biology - phylogenetic inference; 4. Parsimony in psychology - chimpanzee mind-reading; 5. Parsimony in philosophy; References.