David Macaulay takes us on a visual journey through a city's various support systems by exposing a typical section of the underground network and explaining how it works. We see a network of walls, columns, cables, pipes and tunnels required to satisfy the basic needs of a city's inhabitants.

David Macaulay is an award-winning author and illustrator whose books have sold millions of copies in the United States alone, and his work has been translated into a dozen languages. Macaulay has garnered numerous awards including the Caldecott Medal and Honor Awards, the Boston Globe?Horn Book Award, the Christopher Award, an American Institute of Architects Medal, and the Washington Post?Children's Book Guild Nonfiction Award. In 2006, he was the recipient of a MacArthur Fellowship, given ?to encourage people of outstanding talent to pursue their own creative, intellectual, and professional inclinations.? Superb design, magnificent illustrations, and clearly presented information distinguish all of his books. David Macaulay lives with his family in Vermont.