Og Mandino (Natick, Massachusetts, 1923 - 1996) was an American writer and speaker recognized as one of the great references in personal development and motivation. After overcoming a period of deep crisis and alcoholism, he transformed his life and poured his experience into books that have inspired millions. His most famous work, The Greatest Salesman in the World, became a classic of self-help, combining spiritual teachings with principles of personal and professional success. Other notable works include The Greatest Miracle in the World and The Greatest Salesman in the World's Mission. With a clear and hopeful style, Mandino left a legacy of overcoming and faith in human potential.
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