Crime and Punishment, by Fyodor Dostoevsky. (Not in the original Russian, though.)
In parallel with:
Economics in One Lesson, by Henry Hazlitt.
Next up: The Republic, by Plato. (Not in the original Greek, of course.)
I'm not selecting books that demand anything less than full focus lately. This makes them more satisfying to read, but makes them less effective at passing the time when you're sitting somewhere around people.