What sort of non-fiction might help illuminate the discussion

Present a brief proposal (about 350-500 words) outlining the theme you are looking at, and the question you’re asking. Your proposal should include:
a statement of the theme
what you want to explore about it (question focus)
why it interests you
which class-assigned works you are going to draw on
what sort of non-fiction might help illuminate the discussion
what sort of challenges you anticipate, or what questions you have.