The Cambridge Companion to Nietzsche Book

This is a good collection of essays.

(I'm not sure if it would be suited to someone who has absolutely no knowledge at all of Nietzsche though - although there is an overview of his work at the start, it seems to have been included for completeness rather than usefulness)

There is of course always a risk with any collection of essays by different authors of contradiction leading the reader to confusion. This is largely but not entirely avoided here.

[For example, in "The Hero as Outsider", R. Hollingdale slates Elisabeth Forster-Nietzsche for misusing and having a poor understanding of his work, yet in "Nietzsche's Political Misappropriation", Tracey Strong rejects such judgements ...

"[...] the texts work in such a way as to confirm the readings that readers want to make of them. As long as one seeks to treat Nietzsche's texts, in other words, as containers of meaning to be opened and shown around, the only sense one makes of them will be precisely that, one's own sense."]