Truth Theory is a philosophical concept that explores the nature of truth and how it can be defined and understood. It examines various theories, such as the correspondence theory, which suggests that truth is determined by how accurately statements reflect reality, and the coherence theory, which posits that truth is based on the consistency of a set of beliefs or propositions. Additionally, Truth Theory considers the role of language and perception in shaping our understanding of truth. It also addresses challenges like relativism, which argues that truth can vary based on individual perspectives or cultural contexts, raising questions about the objectivity of truth itself.