Black on Black provides the first comprehensive analysis of the modern African American literary response to Africa, from W.E.B. Du Bois's The Souls of Black Folk to Alice Walker's The Color Purple. Combining cutting-edge theory, extensive historical and archival research, and close readings of individual texts, Gruesser reveals the diversity of the African American response to Countee Cullen's question, "What is Africa to Me?"

John Gruesser uses the concept of Ethiopianism--the biblically inspired belief that black Americans would someday lead Africans and people of the diaspora to a bright future--to provide a framework for his study. Originating in the eighteenth century and inspiring religious and political movements throughout the 1800s, Ethiopianism dominated African American depictions of Africa in the first two decades of the twentieth century, particularly in the writings of Du Bois, Sutton Griggs, and Pauline Hopkins. Beginning with the Harlem Renaissance and continuing through the Italian invasion and occupation of Ethiopia, however, its influence on the portrayal of the continent slowly diminished.

Ethiopianism's decline can first be seen in the work of writers closely associated with the New Negro Movement, including Alain Locke and Langston Hughes, and continued in the dramatic work of Shirley Graham, the novels of George Schuyler, and the poetry and prose of Melvin Tolson. The final rejection of Ethiopianism came after the dawning of the Cold War and roughly coincided with the advent of postcolonial Africa in works by authors such as Richard Wright, Lorraine Hansberry, and Alice Walker.