PETER GIZZI is the author of Threshold Songs, The Outernationale, Some Values of Landscape and Weather, Artificial Heart, and Periplum and other poems 1987-1992. MAGGIE NELSON is the author of four books of nonfiction prose, including The Art of Cruelty: A Reckoning, and Bluets; and four books of poetry, including Something Bright, Then Holes and Jane: A Murder.