This chapter details the principles of contract law. It cites that the notion of a contract is a flexible concept which can be invoked by the courts in order to provide solutions to difficult fact situations. The general principles of contract law underpin special rules and apply to all the different classes of contract except in so far as modified by particular rules applying to the particular class of contract. The chapter then looks at the philosophy of contracts and the misleading impression of contracts' role in business. It presents a range of remedies to be invoked when there is a breach of contract.