In this new kind of introduction to ethical theory, Daniel Muñoz and Sarah Stroud present 50 of the field's most exciting puzzles, paradoxes, and thought experiments.

Daniel Muñoz is Assistant Professor of Philosophy and Core Faculty in Philosophy, Politics, and Economics at the University of North Carolina at Chapel Hill, USA. He received his PhD from MIT in 2019, and is writing a book about the foundations of deontology entitled What We Owe to Ourselves.

Sarah Stroud is Professor of Philosophy and Director of the Parr Center for Ethics at the University of North Carolina at Chapel Hill, USA. She has published widely in ethical theory, moral psychology, and metaethics and was a co-editor (with Hugh LaFollette, Editor-in-Chief, and John Deigh) of The International Encyclopedia of Ethics (9 volumes; 2013).

Introduction 1. Utility and Consequences 1. George and the Bioweapons 2. The Utility Monster 3. Parfit's Harmless Torturers 4. Infinite Utility 5. World Cup Accident 2. Killing, Letting Die, and Trolley Problems 6. The Trolley Problem, Part I: Bystander at the Switch 7. The Trolley Problem, Part II: Footbridge 8. Drowning and Letting Drown 9. The Tactical Bomber and the Terror Bomber 10. The Trolley Problem, Part III: The Meta-Trolley Problem 3. Puzzles about Rights 11. The Paradox of Deontology 12. Nowheresville 13. Thomson's Violinist 14. Feinberg's Cabin 15. The Paradox of Self-Release 4. Partiality 16. Singer's Pond 17. David and the Scarce Drug (The Numbers Problem) 18. The Third Man 19. The Archbishop and the Valet 20. One Thought Too Many 5. Moral Dilemmas 21. Kant's Murderer at the Door 22. Jim and the Villagers 23. Sophie's Choice 24. The Gentle Murder Paradox 6. Supererogation 25. The Paradox of Supererogation 26. The All or Nothing Problem 27. Kamm's Intransitivity Paradox 28. What's Wrong with Exploitation? 7. Well-Being and Value 29. The Experience Machine 30. Should We Wish for Immortality? 31. Should We Fear Death? 32. Moore's Beautiful World 33. Sweetening 8. Moral Psychology and Motivation 34. The Ring of Gyges 35. Moral Worth 36. Augustine's Pears 37. The Deferential Wife 9. Moral Responsibility 38. Frankfurt Cases 39. Wolf's JoJo 40. The Paradox of Forgiveness 41. Moral Luck (The Lorry Driver) 10. Belief and Ignorance 42. Wronging by Believing? 43. The Miners Puzzle 44. Moral Uncertainty 45. Cluelessness 11. Future Generations 46. Ex Machina and the Future of AI 47. Children of Men 48. The Procreation Asymmetry 49. The Non-Identity Problem 50. The Repugnant Conclusion. Index