Original cover art for the well-known SF novel by Frederik Pohl and C N Kornbluth, published by Ballantine 1976 (book  shown for reference only). One of Sweet's earlier commissions, at the beginning of his long career . . . by two of the most well-known authors in SF history.  Sharply done, with a great futuristc city and autos...in acrylic on  gypsum board, 24" x 15"