Based on the central premise that the form of a town or city can affect its sustainability, architects, planners, environmental scientists, and others seek to clarify the relationship between the shape, size, density, and uses of a city and its sustainability. They begin where the 1996 book The Compact City leaves off, broadening beyond the compact city model to find approaches suitable for different scales and locations of development. Annotation c. Book News, Inc., Portland, OR (booknews.com)