Diego E. Machuca is Associate Researcher in Philosophy at the National Council for Scientific and Technical Research (Argentina). He is also co-editor of the International Journal for the Study of Skepticism and the book series Brill Studies in Skepticism. His research focuses on skepticism, both ancient and contemporary. He has edited Pyrrhonism in Ancient, Modern, and Contemporary Philosophy (Springer, 2011), New Essays on Ancient Pyrrhonism (Brill, 2011), Disagreement and Skepticism (Routledge, 2013), and Moral Skepticism: New Essays (Routledge, 2018), and co-edited Skepticism: From Antiquity to the Present (Bloomsbury Academic, 2018) and Les raisons du doute: études sur le scepticisme antique (Classiques Garnier, 2019).

Preface.- Chapter 1. The Motivation, the Approach, the Plan.- Part 1: Pyrrhonism Past.- Chapter 2. Pyrrhonian Inquiry.- Chapter 3. Argumentation and Persuasiveness.- Chapter 4. The Agrippan Modes and the Challenge of Disagreement.- Chapter 5. Pyrrhonian Rationality.- Part Two: Pyrrhonism Present.- Chapter 6. The Epistemology of Disagreement.- Chapter 7. Personal Information as Symmetry Breaker.- Chapter 8. The Limits of Self-Knowledge. Chapter 9. The Disagreeing about Disagreement Argument.- Chapter 10. The Nature of Rationality.- Chapter 11. Coda.- Index.