Rachels, J. (1986) The Elements of Moral Philosophy, New York: Random House. (A helpful introduction to metaethics and ethical theory, with good use made of real-life examples. Contains suggestions for further reading.)

Singer, P. (ed.) (1991) A Companion to Ethics, Oxford: Blackwell. (Contains short, pithy articles on central topics in ethics, including metaethics, ethical theory, and applied ethics. The articles include useful bibliographies.)