osar 6 is an impressive collection of eleven essays, most of which are focused on issues in ethics relating to agency, and all of which are relevant to important ethical questions. Given this focus, the volume as a whole is likely to be of interest mainly to philosophers working in ethics (although this is not true of every essay). It is a must-read for philosophers working on moral responsibility or similar issues.Each of the essays in the volume is sophisticated, entrenched in the relevant literature, and deserving of careful attention by specialists. A good number defend bold or