This book explores the nature of engineering and technology through case studies of familiar objects, from paper clips and aluminum cans to airplanes and modern high-rise buildings. These real-world artifacts (some of which I have written about before) are approached here from a perspective designed to illuminate different facets of the engineering enterprise -- design, analysis, failure, economics, aesthetics, communications, politics, and quality control, to name but a few. The case studies also touch on a variety of engineering fields, including aeronautical, civil, computer, electrical, environmental, manufacturing, mechanical, and structural engineering. - Preface.