OK so the book is not bad. But since it touches so many subjects, I'd say most have been treated a bit superficially. Mind you, I don't think it's bad. You have

OK so the book is not bad. But since it touches so many subjects, I'd say most have been treated a bit superficially. Mind you, I don't think it's bad. You have most important concept explained in an accessible way, without the math getting in the way, and I'd say accurately enough. But if you want to go deeper into any of the many subjects presented in the book, you'll do much better buying a separate book (and there's no way around math). All in, I think many people would benefit from it, especially most beginners who have no idea how things work. I'm not sure about the HN crowd.