I read this 'book' almost from cover to cover in about five minutes. To say that it's just a very mediocre mish-mash of stuff from the Web would be VASTLY over-praising it.
So, just for a laugh, and probably because I've got more time on my hands than is good for me, I looked up the user reviews for it here at Amazon, expecting to see nothing but bile. Instead, 11 reviews all giving it five stars! And almost going into ecstasies about how funny it is!
So I checked what other reviews these 'highly satisfied customers' had written, and lo and behold, for 10 out of the 11, this is the only review they've written. The eleventh has written just one other review.
I'll leave it to others to draw what if any conclusions they may.