The document discusses the top ten most popular tea varieties worldwide. It provides details on the supply and demand history of tea, as well as descriptions of the most well-known teas: Darjeeling, English Breakfast, Matcha, Earl Grey, Jasmine, Chamomile, Oolong, Yerba Mate, Rooibos, and Sencha. China is the world's largest tea producer while the UK developed tea production in India. Popular tea drinking countries include Turkey, China, and India. Teas like Darjeeling, English Breakfast, and Earl Grey are widely consumed globally.