What is the theme in Invisible Monsters by Chuck Palahniuk?

The inability to accept oneself or others is a major theme in the book. Shannon McFarland has suffered a terrible gunshot wound to her face. While her life is not in danger, Shannon has lost her bottom jaw and is horribly disfigured. As a model, this injury is devastating, not only taking away Shannon's beauty, but her source of income as well. Shannon should be devastated. However, Shannon takes her injury in stride, wishing she could see what she looks like but prevented in the hospital by a staff who believes the sight will cause her to fall into a dark, desperate depression.