Integrating research methods from linguistics with contemporary legal argumentation theory, this book highlights the complexities of legal justification by focusing on the role of value-laden language in argument construction and use. The combination of linguistic analysis and the pragma-dialectic approach to legal argumentation yields a new way of perceiving and understanding the phenomenon of evaluation, one that offers theoretical and practical gains. Analyzing a vast corpus of judicial opinions from the US Supreme Court and Poland's Constitutional Tribunal, the book paints a clear picture of complex linguistic choices made by judges to assess and support arguments in the justifications of their decisions. The book will be of interest to scholars in Law, Linguistics and Rhetoric, as well as to judges and practicing lawyers engaged in the art of argumentation.