…and you can preorder it now.

And from a recent review by Paul Loeb in the January 2021 Journal of the History of Philosophy:

Brian Leiter’s second book on Nietzsche brings together ideas and arguments that have already had a significant influence on the field through their earlier formulations in his articles from the past two decades. It is thus indispensable reading for anyone interested in Leiter’s evolving project of showing that Nietzsche has the correct naturalistic approach to issues in moral philosophy and moral psychology. As usual with Leiter’s scholarship, this monograph is extremely clear, densely argued, and philosophically sophisticated.