A government is the system by which a state or community is controlled. In the case of its broad associative definition, government normally consists of legislators, administrators, and arbitrators. Government is the means by which state policy is enforced, as well as the mechanism for determining the policy of the state. A form of government, or form of state governance, refers to the set of political systems and institutions that make up the organization of a specific government. Government of any kind currently affects every human activity in many important ways. For this reason, political scientists generally argue that government should not be studied by itself; but should be studied along with anthropology, economics, environmentalism, history, philosophy, science, and sociology. This book outlines the different types of government that have existed throughout history. It can be very enlightening to understand the type of government that controls the individual at various levels from national, state and local to social organizations.