Even Buffett Isn't Perfect: What You Can--and Can't--Learn from the World's Greatest Investor Book

And neither is Janjigian. This is a pretty decent book, nonetheless.

Janjigian makes some good points especially about how Buffett is diffferent from, well, everyone else. Even the above average investor is not going to have the same level of resources, or the same clout, as Buffett. Is there anyone else who is going to get the same level of access to management as a minority stockholder? So it makes sense that most of us have to approach investing differently than Buffett.

I would cite two main weaknesses in the book:
1. He just doesn't have that much insight into Buffett's thinking. For instance, the chapter "When 'good' investments go bad", which is supposedly about mistakes made, does not have anything special to say about the 4 companies discussed, other than at some point or another Buffett probably regretted the purchases. The author doesn't have special access to Buffett, and so is reduced to repeating Buffett's own (brief) analysis of the purchases -- "I was dead wrong." No particular effort shown to fathom why he made the pick, or what was wrong about it, just four picks that weren't the best, and only one of those clearly a money-losing proposition for Berkshire.
2. The Forbes anti-tax mania. The author devotes a chapter, and Mr. Forbes most of his introduction, to railing against Buffett's non-opposition to income and estate taxes. Not that I, personally, want to pay higher taxes -- few do. But the tax burden of the US citizen is very low by most standards, and frankly the concern of the government for the individual's personal advancement is aided by making the government's revenue depend upon the taxation of that individual. And if you have an estate large enough to be subject to the "death tax", you have enough to afford an estate attorney, and no-one feels sorry for you.