Augustine "Og" Mandino II (December 12, 1923 – September 3, 1996) was an American author. He wrote the bestselling book The Greatest Salesman in the World. His books have sold over 50 million copies and have been translated into over twenty-five different languages. He was the president of Success Unlimited magazine until 1976 and is an inductee of the National Speakers Association's Hall of Fame. (Source: Wikipedia)
Died on September 3, 1996 in New Hampshire.
Mandino became a motivation speaker after turning his life around during a very difficult time in his life. He was a bomber pilot in WWII but a salesman afterwards. He eventually became an alcoholic, who was unable to sustain a job. This lead to his wife taking his child and leaving him. Mandino decided to end his existence, but he looked through some self-help books before hand and changing his mind.
Some of his works are:
The Greatest Salesman in the World
The Twelfth Angel
The Greatest Miracle in World
He was also color-blind.