Og Mandino (1923-1996) was an American author of inspirational books, best known for The Greatest Salesman in the World (1968). His books sold more than 50 million copies in over 25 languages; he was president of Success Unlimited magazine until 1976.
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Og Mandino (1923-1996) was an American author of inspirational books, best known for The Greatest Salesman in the World (1968). His books sold more than 50 million copies in over 25 languages; he was president of Success Unlimited magazine until 1976.