This is a surprising book. I bought on the recommendations here and elsewhere, but when I pulled it from the box I was underwhelmed by it's size. As has been implied here, I was guilty of unfairly judging the book by it's cover. Who'd have thought that a tiny little book could have such a high density of high quality material?
I've been surveying the SEO landscape, playing catch-up so to speak, and have bought a number of highly-rated SEO and "make money on Google" books recently. This little book provides a highly-concentrated bundle of insights, and is money well-spent. It's certainly up there with the O'Reilly books in terms of the density of useful information and clarity of thought.
My only negative note (a very, very mild one) is that it's structured, literally, with A-B-C chapters. Consequently, it's not a "sit down and read" book. It's more like an encyclopedia, which actually means it'll be a good reference book later on.