We don't just look at buildings: their facades, beautiful or ugly, conceal the spaces where we live. We are born, work, love, and die in architecture. We buy and sell it, rent and squat it, create and destroy it. All of these aspects of buildings-economic, erotic, political, and psychological-are crucial if we are to understand architecture properly. And because architecture molds us just as much as we mold it, understanding architecture helps us...