The historic preservation movement has had a huge influence on America's built landscape for the past thirty years. Discover the cornerstone primer on the topic -- Keeping Time . This edition features a wealth of new material, including new chapters on preservation values in oral-based cultures, international preservation, and future developments in the field. In addition, you?ll find a clear, concise survey of preservation movement?s history, complete Order your copy of this fundamental volume for tomorrow's historic preservationists today.