Matthias Steup is Professor of Philosophy at St. Cloud State University in Minnesota. He is the author of An Introduction to Contemporary Epistemology (1996), various articles in epistemology, and recently edited Knowledge, Truth, and Duty: Essays on Epistemic Justification, Responsibility, and Virtue (2001). He is co-editor with Ernest Sosa of Contemporary Debates in Epistemology (Blackwell, 2005).
Ernest Sosa is Romeo Elton Professor of Natural Theology and Professor of Philosophy at Brown University as well as Visiting Distinguished Professor at Rutgers University. He is the author of Epistemic Justification: Internalism vs. Externalism, Foundations vs. Virtues (co-authored with Laurence BonJour, Blackwell 2003) in the Blackwell series Great Debates in Philosophy. His publications also include his replies for the volume Sosa and His Critics (edited by John Greco, Blackwell 2004) in the Blackwell series Philosophers and their Critics, as well as numerous articles.
Jonathan Dancy is Professor of Philosophy at the University of Reading. He is the author of An Introduction to Contemporary Epistemology (Blackwell, 1985), Berkeley (1987), Moral Reasons (Blackwell, 1992) and Ethics Without Principles (2004).

With nearly 300 entries on key concepts, review essays on central issues, and self-profiles by leading scholars, this companion is the most comprehensive and up-to-date single volume reference guide to epistemology.
* Epistemology from A-Z is comprised of 296 articles on important epistemological concepts that have been extensively revised to bring the volume up-to-date, with many new and re-written entries reflecting developments in the field
* Includes 20 new self-profiles by leading epistemologists
* Contains 10 new review essays on central issues of epistemology

Preface.
Part I: Review Essays on Basic Problems.
Part II: Epistemological Self-Profiles.
Part III: Epistemology from A-Z