The cover is a great indication of the story structure, going back and forth between the two narrators and time periods. I love the way this is set up, with the present day narrator, Gibran, alongside Kevin in the past. It's a great way to set up the tension between what has changed since the '60s, and what is still ongoing in the present day.
This book is clearly going to tackle some big topics, but I like that the characters already feel fully developed, rather than just being vehicles for the narrative talking points. This is going to be a great book for teens, but I bet it will catch on with adult readers as well, given how in-depth and thoughtful it's already proving to be about race issues in the U.S.