On the history of the idea of law
On the History of the Idea of Law is the first book ever to trace the development of the philosophical theory of law from its first appearance in Plato's writings to today. Professor Letwin finds important and positive insights and tensions in the theories of Plato
On Law and Reason
This is an outline of a coherence theory of law. Its basic ideas are: reasonable support and weighing of reasons. All the rest is commentary.’ These words at the beginning of the preface of this book perfectly indicate what On Law and Reason is about. It is a theory about the nature of the law which emphasises the role of reason in the law and which refuses to limit the role of reason to the application of deductive logic. This book was ground breaking for several reasons. It provided a rationalistic theory of the law in the language of analytic philosophy and based on a thorough understanding of the results, including technical ones, of analytic philosophy.
Methods of Legal Reasoning
The book attempts to describe and criticize four methods used in legal practice, legal dogmatics and legal theory: logic, analysis, argumentation and hermeneutics. Apart from a presentation of basic ideas connected with the above mentioned methods, the essays contained in this book seek to answer questions concerning the assumptions standing behind these methods, the limits of using them and their usefulness in the practice and theory of law. A specific feature of the book is that in one study four different, sometimes competing concepts of legal method are discussed. The panorama, sketched like this, allows one to reflect deeply on the questions concerning the methodological conditioning of legal science and the existence of a unique, specific legal method. The authors argue that there exists no such method.


