In Google's IPO prospectus 21 years ago, founders Larry Page and Sergey Brin gave a flattering nod to Warren Buffett , suggesting in their letter to prospective investors that the billionaire investor was a big influence. They titled their founders' letter, "'An owner's manual' for Google's shareholders," and indicated that there was a footnote worth reading. "Much of this was inspired by Warren Buffett's essays in his annual reports and his 'An Owner's Manual' to Berkshire Hathaway