The interesting thing is that it could’ve gone the other way. Twice. In English or German, we treat scrolling left to be natural, and we consider only one direction of italic slant appropriate. The first has to do with the direction of reading. I believe the second is, like many things in typography, customary; there’s nothing inherently better than right-leaning letters, except we’re used to them since those are the only ones we ever see.

— Marcin Wichary, Good type against all odds, Unsung, 2026