Synopsis: Over 200,000 copies sold! Now with a newly refreshed design, this classic mathematical folktale tells the story of a clever farmer who outwits the Emperor of China and becomes the wealthiest man in the world—all starting with one grain of rice.When a humble farmer named Pong Lo asks for the hand of the Emperor’s beautiful daughter, the Emperor is enraged. Whoever heard of a peasant marrying a princess? But Pong Lo is wiser than the Emperor knows…