What is "left-wing literature"?

An important artistic source of left-wing literature is undoubtedly realism, even critical realism. Pursuing social equality, resisting class oppression and emphasizing people's nature and realistic critical stance are its main characteristics. An important spiritual source of left-wing literature is proletarian revolutionary literature, or it can also be called socialist literature and people's literature. This tradition first spread from the former Soviet Union to China, gradually became a climate in the 1930s, and gradually became a very powerful literary trend of thought after the 1940s. In the 1950s and 1960s after the founding of New China, the so-called socialist realism and revolutionary realism became the mainstream, and left-wing literature basically lost its criticism. So left-wing literature, as a trend of thought, disappeared in this period.