The Cask of Amontillado is a non-linear plot, meaning it includes foreshadowing and flashbacks, demonstrated in the story board above. If the poem wasn't in a non-linear plot and in a linear plot, you wouldn't know a lot of the information needed to understand the poem. For instance you would't have the knowledge of the foreshadowing that Montresor was going to plot a deadly revenge on Furtanado. Also you wouldn't have the knowledge of the flashback between Montresor and Furtanado, causing the deadly situation. Overall this poem is best in a non-linear plot, because it help you understand the knowledge needed to get the poem's message across.