Jeyifo is generally regarded as the world’s pre-eminent scholarly authority on the works and career of Wole Soyinka. His award-winning book on the 1986 Nobel laureate, "Wole Soyinka: Politics, Poetics and Postcolonialism" (Cambridge University Press, 2004), is regarded as the most comprehensive study of the author’s work, and the most sophisticated single author study of any writer in African postcolonial studies.