The idea that nuclear weapons can and should be completely eliminated has achieved a degree of interest and credibility that it has not enjoyed since the first decade of the nuclear age, not least because of some high-profile supporters. This means that it is also starting to get high-level academic attention. Kelleher and Reppy have collected an impressive group of scholars who assume the objective of a nonnuclear world and then explore how this might be achieved and what it might mean. The chapters cover individual countries and a range of practical, institutional, and conceptual problems. Getting to Zero contains plenty of unavoidable skepticism, and readers will not finish it sure about the way ahead, but the book moves the debate to a more serious level.