I don't see much difference between prose poems and flash fiction (I've often taught the latter as the former), but then I also don't see that much difference between art and poetry.
Matthea HarveyI also like poems that are haunted by a structure or a narrative, or poems that frisk flirtatiously at the boundary of sense.
Matthea HarveySome of my favorite poems are "confessional" poems written in the voices of aliens ("Southbound on the Freeway" by May Swenson" and "Report from the Surface" by Anthony McCann), sheep ("Snow Line" by John Berryman) or a yak ("The Only Yak in Batesville, Virginia" by Oni Buchanan).
Matthea HarveyI don't think all poems need to be written in conversational language - those are often great poems but there should also be poems of incoherent bewilderment and muddled mystery.
Matthea Harvey