The Tang Dynasty was the golden age of China's poetry creation, among which _ _ _'s representative works, Qin Zhongyin and New Yuefu, were easy to understand and reflected the social reality.

The Tang Dynasty was the golden age for the development of China's ancient poetry. Bai Juyi advocates that poetry should reflect real life more and achieve educational purposes. His Qin Zhongyin and New Yuefu satirize the society and sympathize with the people. His poems are simple and easy to understand.

So the answer is:

Bai Juyi.