Why are so many of our urban environments so resistant to change? The author tackles this question in her comprehensive guide for planners, designers, and students concerned with how cities take shape. This book provides a fundamental understanding of how physical environments are created, changed, and transformed through ordinary processes over time. Most of the built environment adheres to a few physical patterns, or types, that occur over and over. Planners and architects, consciously and unconsciously, refer to building types as they work through urban design problems and regulations. Suitable for professional planners, architects, urban designers, and students, This book includes practical examples of how typology is critical to analytical, design, and regulatory situations.