This volume represents the most comprehensive and authoritative collection of canonical readings in theory of knowledge. Concentration on the central topics of the field, it includes many of the most important contributions made in recent decades by several outstanding authors. Topics include skepticism and the Pyrrhonian problematic, the definition of knowledge, and the structure of epistemic justification. More specific topics may be found epistemology naturalized, foundationalism vs. coherentism, and virtue epistemology. The volume is ideal as a reader for all courses in epistemology.