Very little fluff in a book that claims to be able to provide "40 percent of a two-year MBA program in ten days", at a fraction of the price?
If you want no-fluff writing on technical subjects, look for a good textbook on the subject of interest. I think people are averse to it, probably an artifact of formal education. But if you can find a well-written, introductory text, on any subject, I think you'll be amazed at how much you can learn from them, while actually enjoying the experience.
It's that sweet spot where it's not as dry as a textbook but not full of fluff like some pop psychology book.
It does look interesting, and I think I may give it a spin. That said, some of the most valuable lessons in an MBA are technical (finance, marketing, operations).
Not really. I just Google things like, "best textbook on <subject>", and you'll end up on some Amazon reviews or SO thread that will at least get you started.
This is where tablets shine, being able to put a literal ton equivalent of paper on a single, portable device.