So you have to write a literature review. You find your favorite novel, and then start analyzing it.
This is how it’s usually done, right?
In fact, it’s not.
The “literature” here means any collection of materials on a given topic. In this case, “literature” can be anything from a set of poems about love to serious scholarly articles about the treatment for pneumonia. And the word “review” does not actually mean that you have to give your personal opinion about these sources.