David Ogilvy was a British advertising tycoon, often referred to as the "Father of Advertising." He founded the advertising agency Ogilvy & Mather in 1948, which became one of the largest and most successful agencies in the world. Ogilvy was known for his innovative approach to advertising, emphasizing research and understanding consumer behavior to create effective campaigns. Ogilvy authored several influential books on advertising, including Confessions of an Advertising Man and Ogilvy on Advertising. His work focused on the importance of storytelling and brand image, and he believed that good advertising should be both informative and entertaining. His legacy continues to shape the advertising industry today.