Artist's book composed of color photographs illustrating various qualities of air in Southern California. Within the book Bruce Nauman presents eight full-page photo-reproductions of the atmosphere. Facsimile signature on verso -- don't let anybody tell you this publication is actually signed by Nauman. A counterpoint to Nauman's earlier title "CLEA RSKY" [ aka CLEARSKY ; CLEAR SKY ]. "...Its ten interior pages present five color photographs, each repeated once, of polluted skies in Los Angeles. As in the earlier volume, each full-page reproduction is a solid color field." -- from "Bruce Nauman [Catalogue Raisonné]."