This document provides an overview of critical theory and its application to organizational communication. It discusses the following key points: 1. The roots of critical theory in Frankfurt School philosophy and Marxism, and the view that knowledge and power structures in organizations serve to oppress workers. 2. Critical theorists see organizations as sites of domination by powerful groups over subordinate groups. Power dynamics and whose interests are served are important concerns. 3. Additional concepts discussed include ideology, hegemony, concertive control, and using critical theory to create more ethical and equitable workplaces. 4. Feminist organizational theory, organizational spirituality, and codes of ethics are explored as ways critical theory has been applied within organizations.