I’ve long been an enthusiast of unpopular punctuation—the ellipsis, the em-dash, the interrobang‽

The trick to using the em-dash is not to surround it with spaces which tend to break up the text visually. So, this feels good—to me—whereas this — feels unpleasant. I learnt this approach from reading typographer Erik Spiekermann’s book, *Stop Stealing Sheep & Find Out How Type Works.