Christopher works across genres with books that include four collections of poetry; translations of the poetry of the Slovenian Aleš Debeljak; several edited volumes; and books of nonfiction, including Things of the Hidden God: Journey to the Holy Mountain, The Grass of Another Country: A Journey Through the World of Soccer, The Old Bridge: The Third Balkan War and Only the Nails Remain: Scenes from the Balkan Wars. His work has been translated into twenty-five languages. He has held a professorship at the College of the Holy Cross, and now directs the International Writing Program at The University of Iowa.