The document provides guidance for writing an essay analyzing the changing character of Lady Macbeth throughout Shakespeare's Macbeth. It outlines key scenes and speeches to discuss, including how Lady Macbeth is initially dominant but her determination becomes more evil over time. Her ambition is revealed through speeches in Acts 1 and 2, and she pushes Macbeth to murder Duncan, though later shows signs of weakness. By Act 5 she has deteriorated greatly and dies, leaving Macbeth isolated in his guilt and madness.