He is a noted expert on the philosophy of Friedrich Nietzsche, is the editor of International Nietzsche Studies, and is Executive Director of the North American Nietzsche Society. His philosophical interests include continental philosophy, particularly Friedrich Nietzsche and Georg Wilhelm Friedrich Hegel and concepts such as human nature, alienation, and value theory.
- Alienation (Garden City: Doubleday, 1970), Doubleday Anchor (paperback) edition: 1971
- British edition (hard cover and paperback): 1971 (London: George Allen & Unwin)
- Hegel and After: Studies in Continental Philosophy Between Kant and Sartre (Pittsburgh: University of Pittsburgh Press, 1975), Pitt Paperback edition: 1975
- Nietzsche (London: Routledge & Kegan Paul, 1983), Routledge Paperback ed.: 1985. Reissued 1994.
- Classical Modern Philosophers: Descartes to Kant (London: Routledge & Kegan Paul, 1984). Reissued 1994.
- The Future of Alienation (Urbana: University of Illinois Press, 1994)
- Making Sense of Nietzsche (Urbana: University of Illinois Press, 1995)
- Finding an Ending: Reflections on Wagner's Ring, with Philip Kitcher (Oxford University Press, 2004)
- Nietzsche: Selections (New York: Macmillan, 1993)
- Nietzsche, Genealogy, Morality (Los Angeles: University of California Press, 1994)
- Human, All Too Human, by Friedrich Nietzsche, trans. R.J. Hollingdale (NY: Cambridge U P, 1996)
- Nietzsche's Postmoralism: Rethinking Nietzsches's Prelude to Philosophy's Future (New York: Cambridge University Press, forthcoming)
- On Human Nature: Readings in Philosophical Anthropology (New York: Prentice Hall, forthcoming)
- The Interpretive Tradition, Volume Four of the Norton Anthology of Western Philosophy (New York: Norton, forthcoming)
- The Norton Anthology of Western Philosophy, 5 volumes (New York: Norton, forthcoming)
- Cataloging-in-Publication Data for R. Schacht (ed.), Nietzsche, Genealogy, Morality (1994).