F. W. Dupee in The New York Review of Books:
As a writer of polemical essays on the Negro question James Baldwin has no equals. He probably has, in fact, no real competitors. The literary role he has taken on so deliberately and played with so agile an intelligence is one that no white writer could possibly imitate and that few Negroes, I imagine, would wish to embrace in toto. Baldwin impresses me as being the Negro in extremis, a virtuoso of ethnic suffering, defiance, and aspiration. His role is that of the man whose complexion constitutes his fate, and not only in a society poisoned by prejudice but, it sometimes seems, in general. For he appears to have received a heavy dose of existentialism; he is at least half-inclined to see the Negro question in the light of the Human Condition. So he wears his color as Hester Prynne did her scarlet letter, proudly. And like her he converts this thing, in itself so absurdly material, into a form of consciousness, a condition of spirit. Believing himself to have been branded as different from and inferior to the white majority, he will make a virtue of his situation. He will be different and in his own way be better.
His major essays—for example, those collected in Notes of a Native Son—show the extent to which he is able to be different and in his own way better. Most of them were written, as other such pieces generally are, for the magazines, some obviously on assignment. And their subjects—a book, a person, a locale, an encounter—are the inevitable subjects of magazine essays. But Baldwin's way with them is far from inevitable. To apply criticism “in depth” to Uncle Tom's Cabin is, for him, to illuminate not only a book, an author, an age, but a whole strain in a country's culture. Similarly with those routine themes, the Paris expatriate and Life With Father, which he treats in “Equal In Paris” and the title piece of Notes of a Native Son, and which he wholly transfigures. Of course the transfiguring process in Baldwin's essays owes something to the fact that the point of view is a Negro's, an outsider's, just as the satire of American manners in Lolita and Morte d'Urban depends on their being written from the angle of, respectively, a foreign-born creep and a Catholic priest. But Baldwin's point of view in his essays is not merely that of the generic Negro. It is, as I have said, that of a highly stylized Negro, a role which he plays with an artful and zestful consistency and which he expresses in a language distinguished by clarity, brevity, and a certain formal elegance. He is in love, for example, with syntax, with sentences that mount through clearly articulated stages to a resounding and clarifying climax and then gracefully subside. For instance this one, from The Fire Next Time:
Girls, only slightly older than I was, who sang in the choir or taught Sunday school, the children of holy parents, underwent, before my eyes, their incredible metamorphosis, of which the most bewildering aspect was not their budding breasts or their rounding behinds but something deeper and more subtle, in their eyes, their heat, their odor, and the inflection of their voices.
Nobody else in democratic America writes sentences like this anymore. It suggests the ideal prose of an ideal literary community, some aristocratic France of one's dreams. This former Harlem boy has undergone his own incredible metamorphosis.