This course explores the evolution of public relations, its key concepts, and its impact on contemporary practice. We will delve into the origins of PR, its relationship with other communication disciplines like journalism, advertising, and marketing, and examine different specialisms within the field, including corporate PR, business-to-business PR, and financial PR. The course will also analyze the role of PR in organizations, focusing on brand image building, communication strategies, and cultural dissemination. We will explore the differences between public, voluntary, commercial, and regulated sectors and examine how PR operates within each. The course will conclude by discussing PR models and theories, illustrating their application through real-world examples from companies like JetBlue, Google, and Orchard Pig.