This book provides the necessary prerequisites in probability and statistics as well as the key ideas in decision theory. It is helpful to students and practitioners who desire to apply decision-theoretic thinking to their own work.1. Introduction Part I: Probability 2. Concepts of Probability 3. Theory of Probability Part II: Statistics 4. Concepts of Statistics 5. Theory of Statistics: Introduction 6. Estimation and Localization 7. Hypothesis Testing Part III: Decisions 8. Decision Theory 9. Utility Theory 10. Multiple Decisions 11. Sequential Methods