Milo, R.D., 1984, Immorality, Princeton: Princeton University Press.
Morton, A., 2004, On Evil, New York: Routledge.
Neiman, S., 2002, Evil: an Alternative History of Philosophy, Princeton: Princeton University Press.
Nietzsche, F., 1886, Beyond Good and Evil: Prelude to a Philosophy of the Future, in The Nietzsche Reader, K. A. Pearson and D. Large (ed.), Malden, MA: Blackwell Publishing Ltd, 2006.
_, 1887, On the Genealogy of Morality: A Polemic, in The Nietzsche Reader, K. A. Pearson and D. Large (ed.), Malden, MA: Blackwell Publishing Ltd, 2006.
O'Brien, D., 1996, "Plotinus on matter and evil," in The Cambridge Companion to Plotinus, L.P. Gerson (ed.), Cambridge: Cambridge University Press.
Plotinus, The Enneads, S. Mackenna (trans.), London: Faber, 4th edition, revised by B.S. Page, 1969.
Pocock, D., 1985, "Unruly Evil," in The Anthropology of Evil, D. Parkin (ed.), Oxford: Basil Blackwell Ltd.
Russell, L., 2006, " 2014, Evil: A Philosophical Investigation, Oxford: Oxford University Press.
Stone, M.H., 2009, The Anatomy of Evil, New York: Prometheus Books.
Strawson, P., 1963, "Freedom and Resentment," in Perspectives on Moral Responsibility, J. M. Fischer and M. Ravizza (ed.), Ithaca: Cornell University Press, 1993.
