Migration refers to the movement of humans or animals from one place to another. There are various kinds of migration including emigration, internal migration, rural-urban migration, international migration, and immigration. Migration is an important driver of growth and is equally important for developed as well as developing countries. International migration is the movement of people across international borders with the intent to permanently settle in a foreign country. International migrants shift their primary residence from one country to another. Usually, international migrants have poorer psychological health than the natives. This is due to the nature of immigration process that involves a range of psychological issues such as the need to navigate new cultural practices; coping with loss and separation from the country of origin, family members, and familiar traditions and rituals; and exposure to a new physical environment. This book analyses international migration from a psychosocial perspective. It will provide comprehensive knowledge to the readers.