
A couple of things struck me on this, my third reading. First is the fact that Liesel only steals books on a "need-to-have" basis. Even though she only has a few books, she gets as much mileage out of them as possible before acquiring another. I like that, and it made me look at my own bloated book collection differently.
The other is the idea that Papa's soul was light because he had given so much of it to others. It's a good thing to aim for.