Robert Holub's book on Nietzsche and anti-semitism
I review it at the New Rambler. The book gets some remarkable endorsements on the dustjacket from historians, though historians, I fear, who didn't know much about Nietzsche and didn't read the book too carefully.
Brian Leiter is Karl N. Llewellyn Professor of Jurisprudence and Director of the Center for Law, Philosophy, & Human Values at the University of Chicago. He works on a variety of topics in moral, political, and legal philosophy. His current Nietzsche-related work concerns Nietzsche's theory of agency and its intersection with recent work in empirical psychology; Nietzsche's arguments for moral skepticism; and the role of naturalism in Nietzsche's philosophy.