I don't read nonfiction the same way most people do. I do multi-pass. I first read the table of contents, then skim the intro pages for each chapter, then skim the whole book, and then finally actually "read" the book. It is weird to people who are used to only the last part, but it lets you see the whole picture beforehand and most importantly it lets you know where to pay attention the most.
Ferriss does that stuff because he wanted to sell books as much as possible. He even chose the name of the book by a/b testing. That stuff is line noise, and I am sure he knows that it is, but it sells millions more copies because of it.
So I would say try the reading approach I mentioned. There is a lot of filler, but there is a lot of good content. I would say the most useful thing is the dreamline idea, it a good approach to goal definition, a lot better than any sort of bucket list and such. I do it somewhat differently than he outlines in the book, but I still do it every month, and it has helped me accomplish a lot more.