Public relations models is a conceptual typology within strategic communication research that classifies distinct historical and theoretical approaches to the practice of public relations. It provides analytical frameworks for examining the evolution and characteristics of various PR strategies. This academic concept investigates the underlying philosophies, objectives, communication flows (ranging from one-way dissemination to two-way dialogue), and ethical considerations inherent in different PR practices, such as press agentry, public information, and symmetrical or asymmetrical relationship building. Key characteristics include their function as classification systems for comparing diverse methodologies and their utility in providing a historical and theoretical lens through which to understand the development and impact of PR. Significance lies in offering a foundational structure for scholarly analysis, informing professional strategy, and facilitating critical evaluation of the effectiveness and ethical implications of communication efforts aimed at managing organizational relationships with publics.