![](https://www.pw.org/files/styles/literary_magazine/public/small_press_images/proofs_theories.jpg?itok=5XTZQdwB)
Winner of the 1993 PEN/Martha Albrand Award for First Nonfiction, Proofs and Theories is a compilation of essays on the work of other poets, as well as reflections on the art. Author Louise Gluck is a former U.S. poet laureate who has written numerous poetry collections, including the The Wild Iris, which received the Pulitzer Prize.