Personal Identity brings together the most important readings on personal identity theory. Brings together 13 of the most important readings on personal identity theory. Includes a detailed introductory historical essay, tracing the origins of personal identity theory. Features essays by David Lewis, Bernard Williams, Derek Parfit, and Robert Nozick. Describes the revolutionary shift from the "internal relations" view of personal identity to the "external relations" view. Includes a discussion on the controversial topic of animalism. Collectively offers a comprehensive introduction to the field.