Epistemology is one of the oldest, yet still one of the most active, areas of philosophical research today. There currently exists many annotated tomes of primary sources, and a handful of single-authored introductions to the field, but there is no book that captures epistemology's dynamic growth and lively debates for a student audience. In this volume, eight leading philosophers debate four topics central to recent research in epistemology:

• The A Priori: C. S. I. Jenkins and Michael Devitt
• The A Posteriori: Richard Fumerton and Nicholas Silins
• The Regress of Justification: Declan Smithies and Peter Klein
• Skepticism: Anthony Brueckner and Ernest Sosa

Ram Neta's introduction to the volume, descriptions of each chapter, annotated bibliographies for each controversy, and supplemental guide to further controversies in epistemology (with bibliographies) help provide clearer and richer views of active controversies for all readers.