This document provides an overview of colonialism, including its definition, types, characteristics, and causes or aims. It defines colonialism as foreign domination intended to serve the interests of the ruling country. There are four main types of colonialism discussed: settler colonialism, exploitation colonialism, surrogate colonialism, and internal colonialism. The document also outlines four common characteristics of colonialism: political and legal domination over alien societies, economic and political dependence, exploitation between imperial powers and colonies, and racial/cultural inequality. Finally, it lists twelve motives for imperialism and colonialism such as increasing national power, economic advantage, spreading religion, and national defense opportunities.