I purchased this book and read it today. I think it's a nice collection of advice for the budding freelancer. It's a little light on the legal aspects such as business structure, taxes and contracts. I would consider it a beginner's book on freelancing.
For a little more depth on the business side of freelancing, I strongly recommend the following book: Working for Yourself: Law & Taxes for Independent Contractors, Freelancers & Consultants, by Stephen Fishman J.D.