This book examines epistemic pluralism, a brand new area of research in epistemology with dramatic implications for the discipline. Challenging traditional assumptions about the nature of justification, an expert team of contributors explores pluralism about justification, with compelling first-order results – including analysis of the various requisites one might want to impose on the notion of justification (and therefore of knowledge) and why. It is shown why a long-lasting dispute within epistemology about the nature of justification has reached a stalemate and how embracing a different overarching outlook might lead to progress and aid better appreciation of the relationship between the various epistemic projects scholars have been pursuing. With close connections to the idea of epistemic relativism, and with specific applications to various areas of contemporary epistemology (such as the debate over epistemic norms of action and assertion, epistemic peers' disagreement, self-knowledge and the status of philosophical disputes about ontology) this fascinating new volume is essential reading for scholars, researchers and advanced students in the discipline.