Artist's book / exhibition catalogue published in conjunction with show held at Kunsthalle Basel, May 23 - July 5, 1987. A masterfully deluxe book documenting Turrell's artwork with essays by Jean-Christophe Ammann, Craig Adcock, E.C. Krupp, and Mario Diacono. Book's endpapers are topographical maps of Turrell's Roden Crater. Book designed by Klaus Baumgärtner. Additionally within the book's back cover is an envelope containing a United States Department of Interior Geological Survey map of the Roden Crater Quadrangle. Text printed by letterpress and illustrations printed by offset lithography. A truly stunning book.