There is no required advanced preparation. If you would like to do some reading on the topic before the start of the module, I would recommend:
Butler,
Judith, Gender Trouble: Feminism and the
Subversion of Identity (London: Routledge, 1990)
Jagose, Annamarie, Queer Theory: An Introduction, (New York: NYU Press, 1997)
Johnson, E. Patrick and Mae G. Henderson, Black Queer Studies: An Anthology (Durham, NC: Duke, 2005)
McCallum, E.L. and Tyler Bradway, After Queer Studies: Literature, Theory and Sexuality in the 21st Century (Cambridge: Cambridge University Press, 2019)
Sedgwick, Eve Kosofsky, Epistemology of the Closet
(Berkeley: University of California Press, 1990)