Somebody read through/skimmed his own book far too quickly, because this is full of glaring typos and grammatical issues. Not sure where the editor was on this one. Judging by the length and quality, I assume this is yet another self-pub with no professional editing beforehand.
With that out of the way, I found the book mediocre at best. If you're a slow reader, perhaps this will be more helpful for you. I'm already a decent reader, and I got very little out of this. A huge chunk of the book was devoted to “how to skim”! I want to learn how to read & comprehend everything much faster, not how to skip it altogether. The best tip/realization I got was that I “regress” in my reading far too often, and I will now watch out for that. This ebook is filled with exercises he wants you to print out or hide portions of, which, if you read on a phone like myself, is impossible &/or impractical.
There are surely better books on the subject out there. I'm glad I got it for free, because it is not worth the kindle price (currently $2.99 for 48 pages!!!). I'm surprised by all of the 4- and 5-star ratings in its handful of reviews, which makes me further side-eye the author, tbph. I did not watch the free video that was linked, so I can't speak to that.