Edward Allen, FAIA, has taught for more than thirty-five years as a faculty member at Yale University and the Massachusetts Institute of Technology. He has designed more than fifty constructed buildings and is the best-selling coauthor of The Architects Studio Companion, Architectural Detailing, Form & Forces, and Fundamentals of Residential Construction. Joseph Iano is an author, illustrator, and practicing architect who has taught design and technology in schools of architecture throughout the United States. He has collaborated on numerous publications over the span of more than thirty years. Currently, he heads a Seattle firm that provides technical and quality management consulting to architects and others in the design and construction industry.