Habeas Viscus focuses attention on the centrality of race to notions of the human. Alexander G. Weheliye develops a theory of "racializing assemblages," taking race as a set of sociopolitical processes that discipline humanity into full humans, not-quite-humans, and nonhumans. This disciplining, while not biological per se, frequently depends on anchoring political hierarchies in human flesh. The work of the black feminist scholars Hortense Spillers and Sylvia Wynter is vital to Weheliye's argument. Particularly significant are their contributions to the intellectual project of black studies vis-à-vis racialization and the category of the human in western modernity. Wynter and Spillers configure black studies as an endeavor to disrupt the governing conception of humanity as synonymous with white, western man. Weheliye posits black feminist theories of modern humanity as useful correctives to the "bare life and biopolitics discourse" exemplified by the works of Giorgio Agamben and Michel Foucault, which, Weheliye contends, vastly underestimate the conceptual and political significance of race in constructions of the human. Habeas Viscus reveals the pressing need to make the insights of black studies and black feminism foundational to the study of modern humanity.

Phonographies explores the numerous links and relays between twentieth-century black cultural production and sound technologies from the phonograph to the Walkman. Highlighting how black authors, filmmakers, and musicians have actively engaged with recorded sound in their work, Alexander G. Weheliye contends that the interplay between sound technologies and black music and speech enabled the emergence of modern black culture, of what he terms “sonic Afro-modernity.” He shows that by separating music and speech from their human sources, sound-recording technologies beginning with the phonograph generated new modes of thinking, being, and becoming. Black artists used these new possibilities to revamp key notions of modernity—among these, ideas of subjectivity, temporality, and community. Phonographies is a powerful argument that sound technologies are integral to black culture, which is, in turn, fundamental to Western modernity.

Weheliye surveys literature, film, and music to focus on engagements with recorded sound. He offers substantial new readings of canonical texts by W. E. B. Du Bois and Ralph Ellison, establishing dialogues between these writers and popular music and film ranging from Louis Armstrong’s voice to DJ mixing techniques to Darnell Martin’s 1994 movie I Like It Like That. Looking at how questions of diasporic belonging are articulated in contemporary black musical practices, Weheliye analyzes three contemporary Afro-diasporic musical acts: the Haitian and African American rap group the Fugees, the Afro- and Italian-German rap collective Advanced Chemistry, and black British artist Tricky and his partner Martina. Phonographies imagines the African diaspora as a virtual sounding space, one that is marked, in the twentieth century and twenty-first, by the circulation of culture via technological reproductions—records and tapes, dubbing and mixing, and more.