One main theme is the American Dream. Willy Loman chases after the idea of success in the form of wealth and popularity but fails miserably. Another theme is family. The complex relationships within his family, like his relationship with his sons Biff and Happy, are explored. Also, the theme of self - deception is present as Willy often lies to himself about his importance and success.
Death of a Salesman is not based on a true story. It was created by the imagination of the playwright Arthur Miller to explore themes of the American Dream and disillusionment.
Definitely a play. Arthur Miller crafted 'Death of a Salesman' specifically for the stage, and it has been performed countless times in theaters around the world.
It's fiction. The plot and characters in Death of a Salesman are imaginative creations of the author to convey certain messages and emotions, not based on real events or people.