These pictures of nests, drawn in part to complement John James Audubon's nest-less Birds of America drawings, are beautiful but also make you wonder what other inverse artwork there could be. Warhol-style paintings of empty tables/cupboards? O'Keeffe-style paintings of headless cow skeletons? Drawings on snowy cars of entire guys except for their genitals? And then make that into a book. Drawings on Snowy Cars of Entire Guys Except for Their Genitals, $9,000 per monograph.