“Petro-Violence and the Act of Bearing Witness in Contemporary Nigerian Literature.” In A Cambridge Global History of Literature and the Environment, edited by Louise Westling and John Parham, 363¬–76. Cambridge: Cambridge University Press, 2016.

“Foreword.” In The Natures of Africa: Ecocriticism and Animal Studies in Contemporary Cultural Forms, edited by Fiona Moolla, vii–xv. Johannesburg: Wits University Press, 2016.

“Witnessing the Nature of Violence: Resource Extraction and Political Ecologies in the Contemporary African Novel.” In Global Ecologies and the Environmental Humanities: Postcolonial Approaches, edited by Elizabeth DeLoughrey, Jill Didur, and Anthony Carrigan, 226–42. New York: Routledge, 2015.

Different Shades of Green: African Literature, Environmental Justice, and Political Ecology. Charlottesville, VA: University of Virginia Press, 2014. (Awarded 2015 Choice Outstanding Academic Title [American Library Association]; Finalist, Association for the Study of Literature and the Environment Ecocriticism Book Prize)

with Garth Myers, eds. Environment at the Margins: Literary and Environmental Studies in Africa. Athens: Ohio University Press, 2011.

African Fiction and Joseph Conrad: Reading Postcolonial Intertextuality. Albany: State University of New York Press, 2005.