The Unwanteds

I think this is a good book for children ages 8-10. It's super easy to read, but I don't think many adults will appreciate it beyond that. It has a clear moral message, and there are very fun elements that kids would love. There are some good moments about how you should treat friends, how to be a gracious winner, and how isolating yourself can be detrimental. They're quick, but they're there.

I don't think the upper half of the age range on back cover would enjoy it as much, though that will depend on how much of a reader they are naturally. This might be a good choice for an elementary schooler who hates reading, because it's fluffy and fun but has a battle scene and animal hybrids.