This document defines and provides examples of different types of contracts, including social contracts, private contracts, international contracts, and municipal contracts. A social contract is an agreement between members of a society regarding what they will or will not do, such as a country's constitution or laws. A private contract is an agreement between two or more individuals for a private purpose, governed by contract laws. An international contract involves two international actors and international importance. Municipal contracts govern agreements between citizens of a state. The document also mentions a metaphysical contract as an agreement between a soul and its creator.