Chapter 3 - Key Issue 1: Where are the World?s Migrants Distributed? Introducing Migration Migration ? a permanent move to a new location; specific type of relocation diffusion Geographers document the migration of people across Earth and reasons for the migration Relocation diffusion ? the spread of a characteristic through the bodily movement of people from one place to another Residence ? where they sleep, store their possessions, and receive legal documents Mobility ? a more general term covering all types of movement from one place to another Examples: journeying every weekday from their homes to places of work or education and once a week to shops, places of worship, or recreation areas Circulation ? short-term, repetitive, or cyclical movements that recur on a regular basis