This book is extremely well written and easy to understand. It is filled with specific examples and gives you step by step instructions on how to implement the advice being given. There are plenty of tools and sources that will help you in making your online (or offline business for that matter) more profitable.
Follow the steps given in this book and you will greatly increase your internet traffic. There is some great solid lessons about the value of testing, testing and then testing some more. Smith makes it easy to follow and implement. However he does make the observation that most people are rather lazy and will not make the effort to really do the work necessary. He writes in his book that Internet marketing is a real business and if you treat it like a business, it can be highly profitable. However, treat it casually and it will never fulfill your dreams.
This book is worth reading, even if you never plan to run an Internet business. There are a couple of groups that probably hope that you don't read this book, Google - Because you will slash the cost of your Google Ads and your competitors and after reading Grow Your Business with Google AdWords you will be a much sharper competitor.