The Concise Edition is a stream-lined version for a four unit course. It omits note materials and cases and a few principal cases. The Tenth Edition continues the approach of earlier editions in emphasizing rich, full-bodied versions of the principal cases, a functionalist approach to the problems of contract law, and analytical notes on such issues as the differences between classical and modern contract law and the role of the limits of cognition in contract law. The new edition includes a great number of new principal cases, including new materials on consideration, duress, remedies, interpretation, indefiniteness, the statute of frauds, electronic contracting, "browse wrap agreements," and unilateral mistake.
Lon Luvois Fuller was a noted legal philosopher, who wrote The Morality of Law in 1964, discussing the connection between law and morality. Fuller was professor of Law at Harvard University for many years, and is noted in American law for his contributions to the law of contracts. His debate with H. L. A. Hart in the Harvard Law Review (Vol. 71) was of significant importance for framing the modern conflict between legal positivism and natural law. Fuller was an important influence on Ronald Dworkin, who was one of his students at Harvard Law.