What are the qualities of an excellent thinker? A growing new field, virtue epistemology, answers this question. Section I distinguishes virtue epistemology from belief-based epistemology. Section II explains the two primary accounts of intellectual virtue: virtue-reliabilism and virtue-responsibilism. Virtue-reliabilists claim that the virtues are stable reliable faculties, like vision. Virtue-responsibilists claim that they are acquired character traits, like open-mindedness. Section III evaluates progress and problems with respect to three key projects: explaining low-grade knowledge, high-grade knowledge, and the individual intellectual virtues.