This collection investigates the multifaceted concept of identity by synthesizing perspectives from philosophy, the social sciences, and the physical sciences. Editor Henry Harris compiles a series of Herbert Spencer Lectures delivered at the University of Oxford, featuring contributions from prominent thinkers such as Bernard Williams and Derek Parfit. The text argues that identity functions as a critical intersectional concept, requiring a cross-disciplinary approach to reconcile personal, practical, and intellectual interpretations of the self.

Experts recognize this volume as a significant interdisciplinary resource for those examining the complexities of identity. Readers frequently note the academic density of the prose, which reflects the high-level discourse typical of the Herbert Spencer Lectures.