This is a charming book on a macabre subject: if every person on earth died tomorrow what would happen to the works of man? Using New York as an example the author details the slow, inevitable destruction of the subways, bridges, buildings, the return of the forests and the animals, and the disposition of those things that never seem to go away: poisonous heavy metals, plastic, and radioactive waste. He also describes the decay of man-made works in other parts of the world, including a vivid description of what would happen to an oil field in Texas if humans suddenly disappeared. That would be hell in the short term -- but some of the speculations about earth without humans sound pretty attractive: back to the Garden of Eden, before Adam, Eve, and the snake. The book is a cautionary one, telling about the fate of earlier societies who outran the potential for their environment, and taking the long view of the human species -- up till and including the final demise when the sun becomes a big cinder about 5 billion years for now. Will the last work of man to survive be a plastic water bottle? An amusing section gives a voice to the Voluntary Human Extinction Movement -- which proposes that human beings help themselves become extinct. Another describes the Pioneer spacecraft, sent out to hunt for other forms of intelligent life in the Universe. All that other civilizations may know of us is contained on the spacecraft: Mozart, Chuck Berry, and a few other details, to be precise.