I completely agree with the author's comment on shorter books. My biggest problem with instructional books in general is that they're filled with too much fluf

I completely agree with the author's comment on shorter books. My biggest problem with instructional books in general is that they're filled with too much fluff. It isn't that I can't read 50 pages a week. I just don't want to, when the usable content could have been written in a page or less. While anecdotes and metaphors are great for inflating page count and price, they do little to help me understand a concept, and just become busywork, which I cannot abide.