The introductory volume is Charlie Huenemann's Nietzsche: Genius of the Heart, which he kindly sent me. I've been dipping in and out of different parts of it, and it is written in an inviting way for the novice but at the same time is clearly better-informed about recent scholarly literature than most introductions to Nietzsche. Signed comments from readers who have read more of the book are welcome.
The other is the edited volume by Ken Gemes and Simon May on Nietzsche on Freedom and Autonomy. All the essays are, I believe, new, except my "Nietzsche's Theory of the Will," which has appeared elsewhere. My contribution is unique in another way too in this volume, since it is, I believe, the only one to defend the view that Nietzsche denies the causality of the will, thus denies the autonomy or freedom of the will, and thus denies that people are in any meaningful sense free or morally responsible. The other contributors are Sebastian Gardner, Ken Gemes, Christopher Janaway, Robert Pippin, Simon May, John Richardson, Peter Poellner, Aaron Ridley, David Owen, Mathias Risse, and Maudemarie Clark & David Dudrick. The "Birkbeck-Southampton" axis and its fascination with the "sovereign individual" looms large here; Gemes's paper is probably the best representative of this moralized reading of Nietzsche in the volume, and I will have more to say about it in papers I'm working on. But Clark & Dudrick offer a detailed response to my "Nietzsche's Theory of the Will" paper, Poellner's paper develops a very different (from the Birkbeck-Southampton axis) line about Nietzsche's idea of freedom, Gardner develops his "transcendental" reading of Nietzsche on the self (which is both hugely stimulating and suggestive and yet hugely implausible to my mind), while Risse examines the idea of eternal recurrence through a Freudian lens (Risse's paper is most removed from the main themes of the volume). I will probably write more about the Clark & Dudrick and Poellner papers later this summer as well. Only Katsafanas, of important writers on this topic, is absent from the volume, though his work is much discussed by contributors. In sum, I'm hopeful that this volume, together with the forthcoming Oxford FNS conference on related themes, will lead to some real philosophical progress on these issues in the next few years. (Of course, my hope is that the moralizing readings of Nietzsche will be decisively defeated, but we'll see!)
Again, signed reader comments on the essays in the Gemes & May volume are also welcome.