The document discusses different examples of deception used by characters in Shakespeare's play Hamlet. Deception is a major theme throughout the play, as characters use false appearances and lies to distract others and achieve their own desires. Hamlet specifically employs various deceptive tactics as part of his plan to get revenge for his father's death, as he vows to his dead father's spirit. Deception is presented as a powerful tool that can be used for both good and evil ends in the story.