Let me start by saying that I have been a software marketing professional for nearly 20 years and I read A LOT of marketing books to keep current with the ever-changing marketing landscape. This book is a disappointment and some of the content was out-of-date at the time of publishing.
It is, as others have said, a dictionary of terms. An introductory book on internet marketing should at least help people get started - maybe a case study of a marketing strategy for a small business to give people some actionable information and context for the various aspects of marketing online.
This book appears to be one that a consultant wrote as a promotional piece to attract new clients and to sell his other books. Even as a give-away, it doesn't offer much. Combine poor writing skills, dated information that can be gleaned from Google for free, 1980's clip art, poor page layout, and a total lack of actionable content and you have a good description of this book.
I hate to give bad reviews but I expect some detail, current content and a professional layout for $15 - I feel ripped off. The good news is that there is a lot of outstanding marketing content available at no cost. Try [...] or [...] for some current and usable content written by marketing professionals. Both have a no cost subscription and a paid offering. The free content will far surpass anything you could read in this book.