Clearly this book will be of particular interest to anyone interested in consequentialist theories of ethics. However, I must stress that this is simply a fantastic book on ethics generally. As usual, Hooker's writing is clear and accessible, and a joy to read. Essentially, there are two reasons one might read this book. First, for Hooker's personal contribution to the subject of moral theory, defending his particular idea of rule consequentialism. Second, as a general book on moral philosophy, covering issues that are relevant to any moral philosopher, however unsympathetic they are to consequentialist theories. The book scores top marks on both counts. It is essential reading for anyone seriously interested in consequentialism, but will also be very beneficial to anyone studying moral philosophy at any level. The arguments are sophisticated enough to be of interest to professional philosophers (see the reviews by Pettit and Parfit among others) while also being accessible to undergraduates with little or no prior experience in philosophy. A great achievement.