Law: Introductory, basic Concepts, The communication of proposal, Acceptance and revocation, valid contracts, Competency of parties to a contract, Consent and free consent, Lawful consideration and object, Agreements without consideration, Agreements in restraint of marriage, Agreement in restraint of trade, Agreements in restraint of legal proceedings, Agreements which are uncertain (Ambiguous Agreements), Agreement by way of wager, Contingent contracts, The performance of contracts, Certain relations resembling those created by contract, breach of contract, indemnity and guarantee, Bailment, Agency.