Contract Law introduces students to the fundamental principles, theories and arguments in Australian contract law. An agreement is usually broken down into two parts: an offer and an acceptance and involves a 'meeting of the minds' (a consensus) between two or more parties.This site is designed to provide an introduction to Australian contract and consumer law. Contract Law in Australia ; ISBN. Introduction to Contract Law. In contemporary Australian contract law, the approach to finding an agreement is to determine the presence of offer and acceptance. Sources of Australian Contract Law. Contract Law introduces students to the fundamental principles, theories and arguments in Australian contract law. The basic principle of Australian contract law is freedom of contract, under which parties are at liberty to strike whatever bargain they choose. In order to create a contract it is necessary to act in reliance upon the promises when accepting it.