Gordon Wilkins is the Robert M. Walker Associate Curator of American Art at the Addison Gallery of American Art at Phillips Academy, Andover. Mark Dion is an American conceptual artist living and working in New York. Christoph Irmscher is a writer and biographer, and the author of The Poetics of Natural History, with photographs by Rosamond Purcell. Errol Morris is an Academy Award-winning American documentary filmmaker. Belinda Rathbone is a writer, historian, and critic of photography.