Epistemology i/ɨˌpɪstɨˈmɒlədʒi/ (from Greek ἐπιστήμη (epistēmē), meaning "knowledge, understanding", and λόγος (logos), meaning "study of") is the branch of philosophy concerned with the nature and scope (limitations) of knowledge.
It addresses mainly the following questions:

  • What is knowledge?
  • How is knowledge acquired?
  • To what extent is it possible for a given subject or entity to be known?

Much of the debate in this field has focused on analyzing the nature of knowledge and how it relates to connected notions such as truth, belief, and justification. One view is the objection that there is very little or no knowledge at all—skepticism. The field is sometimes referred to as the theory of knowledge.

The term was introduced by the Scottish philosopher James Frederick Ferrier (1808–1864).

Read more about Epistemology:  Knowledge, Acquiring Knowledge, What Do People Know?, Practical Applications

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Epistemology - Practical Applications
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Meta-epistemology - The Scope of Meta-Epistemology, Including A Paradox - The Paradox of Self-Study
... However it may be seen as possible-and-desirable for the art of epistemology to be applied sometimes to itself (now acting in a "meta-" role) — and if it then gains new insights on ... which dictated how scientific investigation (epistemology) was to be performed in a fiat-free environment ...
Pragmatismo - Central Pragmatist Tenets - Naturalism and Anti-Cartesianism
... At the same time he held persistently that pragmatism and epistemology in general could not be derived from principles of psychology understood as a ... of science to carve out a space for epistemology that is entirely unrelated to - and sometimes thought of as superior to - the empirical sciences ... instrumental in bringing naturalized epistemology back into favor with his essay Epistemology Naturalized (Quine 1969), also criticized 'traditional' epistemology ...
List Of Epistemologists
... See also Index of epistemology articles William Alston St ... Xenophanes Linda Trinkaus Zagzebski James Frederick Ferrier Epistemology Epistemologists Thomas Aquinas Augustine of Hippo William Alston Robert Audi A ... Nicholas Wolterstorff Vienna Circle Theories Coherentism Constructivist epistemology Contextualism Determinism Empiricism Evolutionary epistemology Fallibilism Feminist ...