'The first time I went to New York City, in September of 1995, I found it to be both a city of bustle and of silence. The one place that most captured that feeling was the subway. The subway is awake 24 hours a day, and in that time I could experience both its livelieness and serenity.
The subway was dim and damp , but from it comes a culture that emanates from the underground tunnels to the city above.'
From the afterword by Kazuo Sumida