Punishment is a topic of increasing importance for citizens and policymakers. Why should we punish criminals? Which theory of punishment is most compelling? Is the death penalty ever justified? These questions and many more are examined in this highly engaging and accessible guide. Punishment is a critical introduction to the philosophy of punishment, offering a new and refreshing approach that will benefit readers of all backgrounds and interests. The first comprehensive critical guide to examine all leading contemporary theories of punishments, this book explores - among others - retribution, the communicative theory of punishment, restorative justice and the unified theory of punishment. Thom Brooks applies these theories to several case studies in detail, including capital punishment, juvenile offending and domestic violence. Punishment highlights the problems and prospects of different approaches in order to argue for a more pluralistic and compelling perspective that is novel and ground-breaking. This second edition has extensive revisions and updates to all chapters, including an all-new chapter on the unified theory substantively redrafted and new chapters on cyber-crimes and social media as well as corporate crimes. Punishment is essential reading for undergraduate and graduate students in philosophy, criminal justice, criminology, justice studies, law, political science and sociology.