This is a very well written biography on one of the world’s most successful stock pickers. This book gives the reader in-depth insights into the investment mind of Buffet during the first 40 years of his investing career. It covers in detail ten or so of his earlier investments and shows over time how his Investment Philosophy evolved. As an investor there are numerous things to be learned in this book. One of the things that struck me was how extremely patient Buffet was. He would be happy to sit in cash for long periods at a time until it was the right time to start investing into an investment. He also felt very strongly that one should only invest into things that you completely understood. This book was also very interesting in that it did a great job in giving some insights into the personal and family life of this great investor.