Tony Hsieh was an American internet entrepreneur and venture capitalist who served as the CEO of Zappos for 21 years. He established himself as a business authority by pioneering a culture-centric approach to corporate success, as detailed in his best-selling book, Delivering Happiness. Before Zappos, he co-founded LinkExchange, selling it to Microsoft for $265 million. His work redefined modern customer service and employee engagement standards globally.