Public relations has evolved from ancient times where rulers used statues and coins to shape public perception, to the modern practice of strategically influencing media coverage and public opinion. Early pioneers like Ivy Lee established the principles of openness and honesty in public relations. Edward Bernays further developed the field and taught that public relations aims to "engineer public support" through information and persuasion. Today, public relations professionals perform roles like writing, media relations, and crisis communication across various types of clients from governments to industries.