General purpose of this lecture is to describe on importance of agreement law. Here briefly explain types of agreement laws and various functions. The backbone of the contract is agreement, often referred to as mutual assent or a meeting of the minds All contracts are made by the process of lawful offer and lawful Acceptance Offer alone and acceptance alone are inactive or powerless, but an offer together with acceptance leads to a contract. An ‘Agreement’ is a statement of the terms by which the person making the offer is prepared to be bound.