Imperfection.

I do everything by hand. I don’t project or use anything mechanical, because even though I do spend a lot of time trying to perfect my line work and my hand, my hand will always be imperfect because it’s human. And I think it’s the part that’s off that’s interesting, that even if I’m doing really big letters and I spend a lot of time going over the line and over the line and trying to make it straight, I’ll never be able to make it straight. From a distance, it might look straight, but when you get close up, you can always see the line waver. And I think that’s where the beauty is.

I guess Margaret sums it up pretty clearly. Imperfection is what makes things human.