I agree with meltbanana about:
"When reading Bogle's own writings, his strong opinions serve his readers well. But when his ideas are rewritten into a broader personal investment guide for novices, I feel like the result is inferior to books by Frank Armstrong, William Bernstein, or Larry Swedroe, which seem to provide a broader perspective to help investors make decisions."
This guidebook seems to be written especially for prospective DIYs Diehards, as a primer to posting on Morningstar's Vanguard discussion forum, and recently at the new Bogleheads Website.
The authors, none of whom is a financial advisor, expanded on rendering financial planning advice in the Guide. While Bogle in his 1999 book "Common Sense on Mutual Funds" was sympathetic to financial advisors by writing "Good advisers give you their personal attention, help you avoid some of the pitfall of investing, and provide worthwhile asset allocation and fund-selection service", the three authors of the Guide, took another tack by criticizing financial advisors.
The chapter "Do You Need an Advisor?" ends with "And, perhaps by the time you've finished reading this book (and a few others) and discovered that investing isn't rocket science, you may just decide that you can handle the task, and that you, too will become a DIY investor."
The above mentioned chapter "Do You Need an Advisor?" starts with the following motto by one of the authors "I helped put two children through Harvard-my broker's children". It continues with an example of a college friend of the other author , who later became a broker, and confided that they had a cute saying at the brokerage house where he worked: "When someone buys or sells an investment, the brokers makes money, and the brokerage house makes money, and two out of three ain't bad".
Such cheap shots against financial advisors are spread here and there in the Guide. It even reached the silly "advice" to Diehards who are looking for insurance products to first go see a "Certified Public Accountant (CPA) who does not sell investment products".
Other misleading financial planning "advice" in the guide are in the treatment of insurance products and their marketers. The authors whom never sold any insurance products to clients, see themselves as experts in this area. The chapter "Protect Your Assets by Being Well- Insured" starts with the motto: "Insurance is the business of protecting everything except the insurance agent". Following this tone the Guide treats insurance and annuities sellers as "vultures", as though there is hardly any needs for risk management in the financial planning process.
The problem with the "Guide" is that it pretends to be a reliable comprehensive financial planning "text book", which it is not. The false impression that the Guide could convert readers to successful DIY investors might be quite costly. Given this potential danger I give the Guide NO stars.