In the last ten years, there has been a revival of interest in the philosophical study of contract law. Much of the discussion relates back to Charles Fried's 1981 claim that contract law is based on the philosophy of promise, generating what is today known as 'the contract and promise debate'. This volume taps into this renewal of interest by bringing together leading philosophers, legal theorists, and contractlawyers to discuss the philosophical foundations of this area of law.Abstract: In the last ten years, there has been a revival of interest in the philosophical study of contract law. Much of the discussion relates back to Charles Fried's 1981 claim that contract law is based on the philosophy of promise, generating what is today known as 'the contract and promise debate'. This volume taps into this renewal of interest by bringing together leading philosophers, legal theorists, and contract lawyers to discuss the philosophical foundations of this area of law