The document discusses similes and metaphors, two common poetry devices. A simile directly compares two things using like or as, while a metaphor states one thing is another without using like or as. The document then provides examples of phrases and asks the reader to identify whether each uses a simile or metaphor. In less than three sentences, it defines and differentiates similes and metaphors as poetic devices that compare things, with similes using like or as and metaphors making a direct statement of one thing being another.