This book is widely regarded as one of the most remarkable achievements in Roman Law and Comparative Law scholarship this century - a fact attested to by the universal acclaim with which it has been received throughout Europe, America, and beyond. As a work of Roman Law scholarship it fuses the vast volume of 20th century scholarship on the Roman law of obligations into a clear and very readable (and in many ways original) account of the law. As a work of comparative law it traces the transformation of the Roman law of obligations over the centuries into what is now modern German, English and South African law, presenting the reader with a contrast between these legal systems which is unique both in its scope and its depth. As a whole the book is written with a deep understanding of human nature and of many social, economic, and other forces that determine the face of the law.