The editors of this collection have brought together an excellent set of philosophers to address the previous question. Roughly one half of the contributors are leading senior metaethicists who have already made important contributions to this debate, whereas the rest are younger scholars who were selected through an open call for abstracts. The editors have also provided a helpful overview article and arranged the articles of the volume clearly under three distinct headings ... I can recommend this collection wholeheartedly to everyone who is interested in the judgement internalism debate. I can also recommend many individual articles to those metaethicists who are working on other important questions in metaethics and moral psychology.

... it will be interesting to those already engaged in, or making plans to wade into, that debate. The volume would also be suitable as a text for a graduate seminar focused on motivational internalism. The editors' lengthy introductory chapter and shorter introductions to the three sections do an admirable job of introducing less well-traveled readers to unfamiliar terrain.

Gunnar Björnsson, Notre Dame Philosophical Reviews Online

I know of no better way of summarizing how good this collection is than to say that the essays within manage to say new and interesting things about motivational internalism.

Derek Baker, Australasian Journal of Philosophy.