In a post at Fairness and Accuracy in Reporting, Steve Rendall and Zachary Tomanelli investigated the racial breakdown of the book reviewers and authors in two important book review venues, the New York Times Book Review and C-SPAN’s After Words. They found that the vast majority of both reviewers and authors were white males.
Overall, 95% of the authors and 96% of the reviewers were non-Latino white (compared to 65% of the population).