Earl Nightingale was an American radio speaker and author. Wikipedia
5 Best Books Written by Earl Nightingale
3. How to Completely Change Your Life in 30 Seconds
How to Completely Change Your Life in 30 Seconds is a 2012 book by Earl Nightingale and Robert C Worstell.
4. The Essence of Success
The Essence of Success: 163 Life Lessons from the Dean of Personal Development is a 1993 book by Earl Nightingale.
