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Before Oprah Winfrey, there was Dale Carnegie. His book, How to Win Friends and Influence People, became a best seller worldwide, and Life magazine named him one of "the most important Americans of the twentieth century". This is the first full-scale biography of this influential figure. Carnegie was born in rural Missouri and to make ends meet he tried his hands at various sales jobs. What he discovered was as simple as it was profound: understanding people's needs and desires is paramount in any successful enterprise.