Discover the visionary ideas that redefined architecture and urbanism—Bill Hillier’s most influential writings on space syntax, all in one critical volume. Few scholars have reshaped our understanding of architecture and urban design as profoundly as Bill Hillier. Space Syntax compiles the most influential works from his career, spanning over half a century, to showcase the evolution of his innovative theories on the spatial structure of cities and the social functions of built environments. Including his early explorations of architecture as a research discipline and his later theories on how spatial configurations influence human movement and urban vitality, this collection provides a definitive overview of Hillier’s intellectual legacy. Featuring newly redrawn figures, rare texts, and expert introductions from leading theorists and practitioners, the volume offers fresh viewpoints on the continued relevance of space syntax in contemporary research and practice. Relevant to subjects ranging from archaeology to physics, Space Syntax cements Hillier’s place as a revolutionary thinker whose ideas continue to shape how we design and understand space.