His academic interests include North American writing [especially Walt Whitman, Anglo-American Modernists, writers since WWII], Latin American poetry, world poetries in Russian, German, and Polish; autobiography; gender studies and queer studies; photography and other visual arts. He's published five books of poems and a book of criticism (on Walt Whitman and William Carlos Williams). In recent years he's edited an anthology of Latin American Poetry, and translated books by Pablo Neruda (One Hundred Love Sonnets), Jan Twardowski (God Asks for Love), Wislawa Szymborska (The End and the Beginning), and Gabriela Mistral (Selected Prose and Prose Poems).