Gregor Craigie

"While the world keeps building barriers, we can't forget the forces that make people move in the first place." (2)

A beautifully designed and presented book on a fascinating concept, organized by purpose:

To keep people out
To keep people in
To protect crops and livestock
To defend against the enemy
To control nature
To keep two sides apart
To protect the city
To make money
To set boundaries
To protect the planet

Back matter includes a glossary, resources, acknowledgments, index… (mehr)