What's in the Book of Songs? What's the name of what Qu Yuan created?

The national style in The Book of Songs and Li Sao written by Qu Yuan are both called Sao. "National Style" is the essence of The Book of Songs and a bright pearl in the treasure house of ancient literature and art in China. The folk songs of Zhou Dynasty in "National Style" reflect the real life of working people with colorful pictures, express their unfair treatment in the situation of exploitation and oppression and their belief in striving for a better life, and are the source of China's realistic poems. Li Sao is the masterpiece of Qu Yuan, a famous poet in the Warring States Period, and the longest romantic political lyric poem in the history of ancient Chinese poetry. The poet described his life experience, moral character and ideal, expressed the anguish and contradiction that he was slandered to death, rebuked the fatuity of the king of Chu, the madness of the villain group and the ineffective governance of Japan, and showed the poet's fighting spirit of adhering to the ideal of "beautiful politics", attacking the dark reality, not colluding with evil forces and his patriotic enthusiasm to death.