A very effective work. It sees the revolution in Iran through the eyes of a child and is in some ways a more effective work than Maus, because here the Revolution is contrasted with the quirkiness of a quirky but loveable child. Very good and deserves its reputation.
Update: The more I think about it the more I think that Persepolis is the best thing I've read written in the 21st century so far. I don't know what that says about our culture, but as of the time of this writing, I see the Persepolis books as the 21st century's crowning literary achievement. They are both really good, and novels lately have some problems.