Sorry. I’ve read it, haven’t talked any of the kids into it yet. I liked it, both boys proclaimed it looked dull, and we rarely do nature study along with books. Sorry I’m not more help!
And no, I don’t always let the kids decide whether or not to read something, but they are sort of science- and nature-intense and I do try to go with their preferences in those areas. Outside of their official “courses” what they do science and nature wise is their own. I have a kid currently into edible local plants and one who wants to make plasma out of grapes, oh, and the little guy who is currently obsessed with cicadas. 