They ban a book, I buy the book. Stamped has been banned from my local school district in South Carolina. It’s a fantastic read for kids or for adults new to the topic. Gives a small amount of information on a topic then keeps it moving, a great way to hold young people’s attention through a non-fiction read. 

I read this today to see if the topics were obtainable for my 6 year old and I actually learned things I didn't know before (mostly early America historical facts.)
The information is shallow enough to be accessible for children but give enough depth to educate and encourage them to think and connect the dots on their own. I do appreciate that there are built in pauses that are treated as sidebars with additional information, and some call backs to previous information to help with retention and pattern recognition. The topics are sad but informative without the bias of emotion. There is no attempt to push guilt or anger, they are just the facts presented with context.

I would say my 6 year old is still too young for the topics and depth of information, but when the time comes I'm glad I know the information ahead of time so I can answer questions I know she will have.