<P>A groundbreading study of urban sprawl in Calgary, <I>Expansive Discourses </I>looks at the city's development after the Second World War. The interactions of land developers and the local government influenced how the pattern grew; developers met market demands and optimized profits by building houses as efficiently as possible, while the city had to consider wider planning constraints and infrastructure costs. Max Foran examines the complexity of their debates from a historical perspective, why each party acted as it did, and where each can be criticized.</P>