A contract is a legally binding promise or agreement. (Halsbury's Laws of Australia [110-1] Definition)
The five major concerns of contract law analysis are: 
(1) the processes by which contracts are formed, the identification of the parties and the identification and interpretation of the terms of the contract so formed;
(2) the circumstances in which contractual agreement is affected by the presence of a vitiating factor or illegality;
(3) the requirements of contract performance and the circumstances in which breaches of contract occur;
(4) the circumstances in which a contract will be discharged and the consequences of such a discharge; and
(5) the principles governing remedies available for breach of contract.
(Halsbury's Laws of Australia [110-5] Concerns of contract law analysis)
Start finding out more about Contract Law using LexisNexis Practical Guidance - Contract Law (browse under Business).
Principles of Australian contract law : cases and materials by For more legislation, see Lawlex
Use a case citator, CaseBase or Westlaw Australia (Cases) to find specific cases from Australian courts.
