This document provides an overview and comparison of syntactic, semantic, and behavioral (pragmatic) accounting theories. Syntactic theories focus on sentence structure and rules, semantic theories study the meaning of sentences, and pragmatic theories examine how meaning changes based on context. Historical cost accounting may produce accurate outputs syntactically but lack semantic accuracy if not useful for decision making. Pragmatic theories are criticized for focusing on accountant behavior rather than measuring attributes of the firm. The document concludes that traditional accounting theory consists of practical views that provide a theoretical basis for accounting methods and set out its relationship to other fields of knowledge.