This is a famous free verse poem. The first voice gives the poets name. Then we hear the poet himself recite the poem.
Fog
By Carl Sandburg
The fog comes
on little cat feet.
It sits looking
over harbor and city
on silent haunches
and then moves on.
We hear Carl Sandburg himself recite his own poem, but he reverses the order of words: city and harbor becomes the order when he recites it. That means in his recording the words it, sit, and city are closer together than in the published version.
This poem makes striking use of visual imagery and sound effects.