In addition to his volumes of poetry, The Clasp and Other Poems, The Folded Heart, The Neighbor, The Ledge, and Dark Wild Realm, Collier also wrote an acclaimed translation of Euripedes' Medea for Oxford University Press's Greek Tragedy in New Translations series that has been performed by theater companies across the country. Most recently, Collier published a collection of essays on poetry and influence titled Make Us Wave Back (Michigan, 2007). His awards include a Guggenheim Fellowship, two NEA fellowships, and selections as a finalist for the National Book Critics Circle Award and the LA Times Book Prize for Poetry for 2001's The Ledge.
Collier holds posts as the director of the Bread Loaf Writers' Conference in Middlebury, Vermont, the longest running writers' conference in the country, and as poetry editorial consultant for Houghton Mifflin. Despite the variety of prestigious posts held and prolific poetic output, the former Maryland poet laureate has been instrumental in developing the careers of many undergraduate and graduate students.