In heaven, there lived a god called Shennong, the divine farmer. He was saddened by the daily suffering of the people on earth, and decided to leave heaven to help the people as best he could. He taught the people how to grow these plants and to use them for food. Besides, Shennong tried many different ways to cure the people’s illnesses. He moved from mountain to mountain in an attempt to try all the plants of each mountain, and finally dedicated his priceless life for that. This series is four color printing. The beautiful pictures and simple words make this series prefect for Chinese and overseas children's reading. This series is four color printing. The beautiful pictures and simple words make this series prefect for Chinese and overseas children's reading.