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Cover of The Greatest Secret in the World by Og Mandino

The Greatest Secret in the World

  • 186 pages · about 3 hours
  • First published 1972
  • 14 editions

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1 About this book

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  • Religion & Spirituality
  • Spiritual life
  • Success in business
  • Success

2 About Og Mandino

Died 1996

Augustine "Og" Mandino II (December 12, 1923 – September 3, 1996) was an American writer. The author of The Greatest Salesman in the World, his books have sold over 50 million copies and have been translated into over 25 languages. He was the president of Success Unlimited magazine until 1976 and was inducted into the National Speakers Association's Hall of Fame.

Bio adapted from Wikipedia (CC BY-SA 4.0)

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