I have a friend who calls himself a poet because he published a poem in a magazine once, but then for fun he published the exact same poem in another magazine, just to see if he could, and ever since ...

Clockwise from top left: Walt Whitman, Robert Lowell, Virginia Woolf, Yusef Komunyakaa, Adrienne Rich, Langston Hughes, Denise Levertov. Photo illustration by Slate. Photos via Wikimedia Commons. O ...