This book presents, analyses and evaluates the Principles of Latin American Contract Law (PLACL), a recent set of provisions aiming at the harmonisation of contract law at a regional level. As such, the PLACL are the most recent exponent of the many proposals for transnational sets of `principles of contract law' that were drafted or published over the past 20 years, either at the global or the regional level. These include the UNIDROIT Principles of International Commercial Contracts, the Principles of European Contract Law, the (European) Draft Common Frame of Reference and the Principles...