This article explores the history, market, annual profit turnover, and competition of Chick-fil-A, the third largest fast food restaurant chain in the USA, famous for its chicken sandwiches. It covers its innovative marketing strategies, shared programs, and convenient drive-through system. It also reveals interesting facts about its foundation, catchy name, and why it is closed on Sundays. The article discusses how it became the fastest growing fast food chain and the number one in the industry.