This is a contituation from her earlier publications, "Gender Trouble," "Bodies That Matter." Those who read these two texts would find this book extremely interesting. Butler seems to move her theorization of subjectivity from the materiality of the body (in previous texts) to the psychic realm of subjectivity. Please note that this is NOT a reflection of Cartesian dichotomy of mind/body. Rather, I understand her move as strategic choice, in order to deepen her analysis of power and its relation to psychic realm, before delving into the inextricable reality of psyche and body. Here Butler draws on the works of various philosophers, such as Hegel, Althusser,Nietzsche, Freud, Foucault and so on, to explicate the complex process through which power engenders a psychic form (see intro), and constitutes a self. As always, her eloquent rhetorical style and brilliant epistemological turns are amazing enough.