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This book is good for beginners. You can have the same information by just reading the Berkshire Hathaway annual reports. The autors good have gone deeper on value investing. Overall, it's a good read.
It's not that this book isn't well written. It is factual and has much historical information. It thoroughly explains the early influences on Warren Buffet and how he has modified his approach over the years. After reading it, I'm not sure I really understand HOW WB decided to bet the farm on Coke or Washington Post, only that he did so. Perhaps it's too much to expect that I can read the book and become a genius investor or even understand how WB did.
For experienced investor or people who already know what value investing/Buffet's style is, this book will not help you much IMO. It is interesting to read about the various examples in the book but most of them are well pubclisized ie "Buffet bought Coke because he was sure it would be a bigger better business in 10 years".
It didn't go nearly as in depth as I would have liked. I wish someone would write more about Buffet's early partnership days.