When I read Maus last year, I was surprised at how well a graphic novel is able to tell a story with such an impact. Reading March: Book One, I'm strengthened in my beliefs that it is a very good medium for these kind of stories.
I happened to get this book as a surprise (for signing up to a newsletter), so at first I didn't know what to expect. But once I read a bit about it, and then started reading it, I couldn't put it down (and I didn't since it was only 130 or so pages).
I think the racial segregation is one of the black pages in American history and it's very important that people learn about it. This book is a powerful way to do so. Would recommend!