Exploring the importance of megacities and megacity-regions as one of the defining features of the 21st century, this Handbook provides a clear and comprehensive overview of current thinking and debates from leading scholars in the field. Highlighting major current challenges and dimensions of megaurbanization, chapters form a thematic focus on governance, planning, history, and environmental and social issues, supported by case studies from every continent. Analysing vital questions for contemporary urban research, this Handbook looks at: what place megacities and megacity-regions occupy...