About the Cover

This is Amy Casey’s wonderful picture Twist which is one of many she has been producing which capture the essence of complex cities, how they are mixtures of machines and organisms, how they link everything up together, how they are memes and genes, tendons and neurons. Her Online Gallery is full of beautiful constructions that evoke enticing insights and speculations into what cities really are. I am grateful to her for giving us permission to reproduce her remarkable work.

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