Mark Irwin is the author of thirteen collections of poetry, including Once When Green (2025), Joyful Orphan (2023), Shimmer (2020), American Urn: Selected Poems (1987-2014), Tall If (2008), and Bright Hunger (2004). Recognition for his work includes The Nation/Discovery Award, two Colorado Book Awards, four Pushcart Prizes, the James Wright Poetry Award, the Philip Levine Prize for Poetry, The Juniper Prize for Poetry, and fellowships from the Fulbright, Lilly, and NEA. He has also translated three collections of poetry and lives in Colorado and Los Angeles, where he teaches at the University of Southern California.