" A very fast read, though the vocab and math ideas are pretty sophisticated, so I'm not sure it's a shoo-in for reluctant readers. There's not a lot of character development or even plot (as you might imagine given the short length). It's more a book centered around an idea, a "what if." It's fun, but I'm not quite sure who it appeals to... it's one of those books where I'd have to get kids' reactions. Could be good in a school setting to talk about math and economics. "
— Frances, 2/2/2014