This is the first book devoted to the work of Ernest Sosa, one of the most influential contemporary epistemologists.

• Part of the acclaimed Philosophers and Their Critics series.
• The editor's introduction serves as an introduction to Sosa's epistemology.
• Contains critical essays by more than twenty of the most prominent epistemologists in the world, commenting on Sosa's work.
• Concludes with Sosa's own reply to his critics.

John Greco is Associate Professor at Fordham University. He is the author of Putting Skeptics in Their Place (2000) and co-editor of The Blackwell Guide to Epistemology (1999). He has published numerous journal articles in the field of epistemology.