Everything you need to understand or teach The Two of Them by Joanna Russ.
Basically The Two of Them deals with twin themes that are central to all of Russ's writing: the role (or roles) of women in a destructive patriarchal society and the role of the artist/writer/poet in a male-dominated society.
Like many of Russ's works, this novel is one of self-disclosure which has a strong feminist message about the empowerment of women.