The primary focus of epistemology is the study of knowledge—its nature, sources, limits, and justification. Epistemology seeks to answer fundamental questions about what knowledge is, how it is acquired, and what distinguishes justified belief from opinion. This branch of philosophy delves into the criteria for knowledge claims, exploring concepts such as truth, belief, and skepticism. Epistemologists analyze various sources of knowledge, including perception, reason, memory, and testimony, while assessing their reliability. Understanding epistemology is essential for evaluating how knowledge is constructed and understood, which has implications across many fields, including education, science, and ethics.