John Schaufelberger, Ph.D., PE, is the Chairman of the Department of Construction Management at the University of Washington, where he has taught since 1994. He teaches both graduate and undergraduate courses in the areas of construction equipment management, construction practices, construction contract procurement, construction firm management, and international construction project management. A licensed professional engineer, he served thirty years as an officer in the US Army Corps of Engineers prior to joining the University of Washington faculty. He managed major public works construction projects in Asia, Europe, and the Middle East, as well as at many locations throughout the United States. He has represented the United States in negotiations with foreign governments. He is the author of Construction Equipment Management, published in 1999 by Prentice-Hall, and co-author of Contracts with the Trades: Scope of Work Models for Home Builders, published in 1997 by the Home Builder Press, Management of Construction Projects: Constructor's Perspective, published in 2001 by Prentice-Hall, and Construction Cost Estimating: Process and Practices, published in 2005 by Prentice-Hall.