A thoroughly updated and redesigned edition of McCarter's esteemed monograph on the globally-revered modern master Louis I Kahn was one of the greatest influences on post-WWII world architecture, and in the twenty-first century his significance has skyrocketed. In this revised, expanded, and redesigned edition of Phaidon's bestselling and critically-acclaimed monograph, Robert McCarter explores how Kahn redefined Modern architecture - and why his work remains a fundamental source today. Extensively illustrated, this comprehensive overview includes both built and unbuilt projects, as well as a project realized forty years after Kahn's death - New York City's Four Freedoms Park.