Preface to this edition Brian Skyrms; Introduction; 1. Bayesianism; 2. The philosophical and psychological significance of Bayesian decision theory; 3. Bayesian decision theories: some details; 4. The counterexamples; 5. Causal decision theories; 6. Common causes, reasons and symptotic acts; 7. A general defence of PMCEU; 8. Newcomb's paradox; Appendices; Bibliography; Index.