Difficult to say without knowing what part of the world history of literature was covered, but it is somewhat difficult not to somehow discuss Marx in some way, since the anti-capitalist socialism has politically been a large factor shaping the major modernist art movements as a response eother for or against. But if it was say modernist literature and there was jo TS Eliot’s conservatism, it would strike me a bit odd.

Leftist academic thought has however had huge influence on modern art movements. I leave it as an exercise for the reader to figure out why that might be.