About Warren Buffett / Berkshire Hathaway
Mary Buffett / David Clark: The New Buffettology. Rawson Associate 2002
James O‘Loughlin: The Real Warren Buffett. N. Brealey Publishing 2003
Robert Miles: The Warren Buffett CEO. John Wiley & Sons, 2002

About Value Investing
Kirk Kazanjian: Value Investing with the Masters. NY Institute of Finance, 2002
Bruce Greenwald et al.: Value Investing. From Graham to Buffett and Beyond. Wiley Finance, 2001

Miscellaneous
Tweedy, Browne (Publishers): Investing for Higher After-Tax Returns
Tweedy, Browne (Publishers): What has Worked for Investing