I feel bad on this one as I've stopped reading it, not because I didn't enjoy it, but I bumped into the reviews and I'm stopping reading it because other people say the book isn't actually well-sourced. And unfortunately, for me at least, I don't want to read this if I can't believe it is accurate. It's no longer interesting for me.

Also, it turns out it's about American English, written in the language of the 1980s. That's not a criticism but it's another thing that's a little jarring.