Exterior details lend themselves to the interior landscape of a character or narrator. What one chooses to notice, how one describes an object, says more about the speaker than it does about that thing. A character who spends a whole paragraph noticing someone’s unwashed, unkempt hair tells the reader that hygiene is an obsession. The distant relative who’s quick to point out the stain on a shirt might be hasty to reveal the flaws of others. Daily Details Made Monumental, on the Ploughshares blog, discusses how Joan Didion utilizes detail in her nonfiction.