Introduction Veronica Rodriguez-Blanco and George Pavlakos; Part I. Will and Blameworthiness: 1. The Problem of Pure Negligence Gideon Rosen; 2. Unwitting Omissions, Mistakes, and Responsibility Erasmus Mayr; 3. 'How Could You?': The Moral Import of Obliviousness Gideon Yaffe; 4. Varieties of Negligence and Complications for Moral Blameworthiness William FitzPatrick; Part II. Agency, Reasons and Inadvertence: 5. The Possibility of Pure Negligence Gary Watson; 6. Agent-Relativity without Control: Grounding Negligence on Normative Relations George Pavlakos; 7. The Boundaries of Negligence Matt King; 8. The Backward-Looking Puzzle of Responsibility in Negligence: Some Preliminary Thoughts for Understanding Inadvertent Actions Veronica Rodriguez-Blanco; 9. Responsibility and Agency Emmanuel Voyiakis; Part III. The Significance of Action in Negligence: 10. What is It to Do Nothing? Constantine Sandis; 11. Rape, Recklessness, and Sexist Ideology Elinor Mason; 12. From Law to Moral Philosophy in Theorizing About Negligence Benjamin C. Zipursky.