<P>Derek Parfit was one of the world¿s leading philosophers. His <I>On What Matters</I> was the most eagerly awaited book in philosophy for many years. <I>Reading Parfit: On What Matters </I>is an essential overview and assessment of volumes 1 and 2 of Parfit¿s monumental work by a team of international contributors, and includes responses by Parfit himself. It discusses central features of Parfit¿s book, including the structure and nature of reasons; the ideas underlying moral principles; Parfit¿s discussions of consequentialism, contractualism and Kantian deontology; and his metaethical ideas and arguments. </P><I><P>Reading Parfit</I> will be central reading for students of ethics and anyone seeking a deeper understanding of one of the most important works of philosophy published in the last fifty years.</P>