Book excerpt: In his introduction, Carretta reconstructs the historical and cultural context of the works, emphasizing the constraints of the eighteenth-century genres under which these authors wrote. The texts and annotations are based on extensive research in both published and manuscript holdings of archives in the United States and the United Kingdom. Appropriate for undergraduates as well as for scholars, Unchained Voices gives a clear sense of the major literary and cultural issues at the heart of writings in English by people of African descent.