In 1967, when 23-year old James Turrell created his first light projection, he broke new ground in a way that would decisively influence his generation and the development of art. Though Turrell worked in the context of Minimalism and the Earthwork movement, his art at this early stage displayed--as it still does--a sensibility all its own. This book reveals the ways in which Turrell's art has developed, and offers an extensive overview of his work from its earliest stages to the present. Turrell is above all preoccupied with the phenomenon of light--and his architectural projects and installations often transform their surroundings into transluscent sculptural bodies. From his first Projection Pieces to the Roden Crater Project in the Arizona desert, this volume presents over 30 years of this seminal artist's work, and includes critical essays by Daniel Birnbaum, Georges Didi-Hubermann, Michael Rotondi, and Paul Virilio.