what makes a property intrinsic? What exactly does the intrinsic extrinsic distinction rest
upon and how can we reasonably justify this distinction? These questions bear great importance
on central debates in such diverse philosophical fields as ethics (What is the nature of
intrinsic value?) philosophy of mind (Does mental content supervene on internal bodily
features?) epistemology (Can intrinsic duplicates differ in the justification of their
beliefs?) and philosophy of science (Do the causal powers of an object depend on its extrinsic
features?) ¿ to only name a few. Given the central relevance of the intrinsic extrinsic
distinction to philosophical research a collection of pertinent essays on the topic is an
essential addition to the literature. It helps to identify more clearly the problems and
arguments that are at stake. The anthology provides a comprehensive overview of central facets
of the debates including both crucial earlier and important new contributions by leading
philosophers. As such it constitutes an indispensable component of any serious study of the
topic.