Berkshire Hathaway, despite a market value now approaching one quarter of a trillion dollars, is managed from a tiny office with a staff smaller than a soccer team’s starting roster. Buffett is not the slave to a corporate calendar jammed with the humdrum inanities of business life like performance assessments, facilities planning, analyst meetings, compliance training, budget reviews and travel. This leaves him time to read and think so that for Buffett the only real difference between a weekday and the weekend is that for for two days the markets are closed. Buffett is no fan of spreadsheets or reams of analytical mumbo-jumbo. Facts, a pen, a sheet of paper and an agile mind are his tools.