As the title of the book implies, appearance—what the beholder perceives—and identity—the real person behind one’s eyes—are central themes in the book. The mystery of the story lies in the authenticity of identity—both physical and psychological. The power of appearance, the ability to change it, and shifting identities are vital to the story. The text is peppered with references to false identity such as “practice wife” (51) and “faux middle-class exterior” (65).

David’s handsomeness is of great importance to all those who love him, and this love is the binding force throughout the story. Louise, Adele, and Rob are all attracted to David because of his physical features. Louise mentions his warm blue eyes. Adele appreciates his masculinity, particularly his broad shoulders, and at the end Rob talks about how he desired David’s “strong back […] That body pounding its lust into mine” (370).

Adele is known for her beauty, which is part of her charm and power over people: “It’s nice to get dressed up and to be beautiful […] It’s a reminder that I’m in control (261). She also places great emphasis on other people’s appearance. Louise’s is of particular importance to her, and she works on helping Louise to become slimmer and more toned while manipulating Louise’s thoughts and actions.