This document discusses migration and its key aspects. It defines migration as the movement of people between locations with the intent to settle. The two main types of migration are international migration, which is between countries, and national migration, which occurs within a country's borders. Factors that influence migration include "push factors" like lack of opportunities or unrest in one place, and "pull factors" like better jobs or education elsewhere. Migration impacts places by causing rural depopulation, overpopulation in cities, limited resources, and high unemployment. The document concludes by recommending readers research measures to minimize unwarranted migration.