This chapter surveys migration patterns in the major countries and regions of the world. Most of the world's countries are senders of migrants, receivers of migrants, or places through which migrants transit, and many are all three, but most migrants come from and go to relatively few countries, leaving countries such as Mexico and the Philippines, and migrating to countries such as the United States and Saudi Arabia. The chapter discusses how although Africa has long been associated with seasonal labor migration across borders drawn by colonial powers, nationalism has sharpened differences between natives and migrants in some of the relatively richer countries that receive migrants, such as the Ivory Coast and South Africa. It also argues that foreign populations in Europe cannot be compared directly with the foreign-born share of the population or labor force in countries shaped by immigration, such as Canada and the United States.