What graphic novel should be required reading in high schools?S

High school is when you learn a lot of the truth about being a grown up — and sometimes, the teachers will try to give you a heads-up, with reading lists that include Catcher in the Rye or whatever. But what graphic novel ought to be on every high school's required reading list?

Please include a cover or other representative image for your chosen graphic novel. And mention the title, and why it's so perfect. Thanks!