This was fun and also like a great commentary on how our perceptions shape the stories we tell! The art by Eugene Yelchin is incredible--my landlord glanced at it over my shoulder and commented how cool it looks--and the language is simple but with big enough ideas that I think a wide range of kids (and adults!) could read this and get varying levels out of it. (Teachers I think especially it could be a good read to discuss like meaning and analogy in books.) 

The arc of Spurge in particular was good to see (because BOY was it frustrating to see how poorly he treated Werfel, who was my favorite and who tried so hard!) and the ending was satisfying and cool. Definitely a good read, flies by pretty fast thanks to the illustration, so if you have a kid who hasn't read it, I definitely recommend it!