Book excerpt: Mastering Statutory Interpretation explains the methods of interpreting statutes, including a discussion of the various theories and canons of interpretation. The book begins by exploring these theories and identifying the sources of meaning the theorists use to interpret statutes, including intrinsic, extrinsic, and policy-based. Throughout, the text uses the major cases in each area of study to explain how the canons work in practice. Finally, each chapter provides a concise roadmap and summary to introduce and encapsulate the most important material.