If you are after a practical book to help you improve your marketing skills then look elsewhere.
The author is a copyrighter, not a pure marketeer as such, and this comes across in the seemingly random structuring and poor writing. He also desparately tries to 'upsell' himself by continually dropping in his web site address, plus the recommended further reading books are all written by himself. Such self promotion in a paid for book is a bad sign.
Content-wise the book seems to be very weak, for example it never presses the issue of marketing the benefits of a product, not it's features (a core principle of marketing as far as I was concerned).
Another bad indicator is that I am from a web background and the section about this was, in my profesional opinion, that of somebody who didn't know what they were talking about.
In summary I learnt nothing useful from this book and I doubt you will either.