Earl Nightingale books in order

4 books in the catalogue, about 12 hours of reading in all; the shortest takes 48 minutes and the longest 6 hours.

4 standalone books in the catalogue.

Standalone books

The Strangest Secret 1900 48 min This Is Earl Nightingale 1969 6.1 h Earl Nightingale's Greatest Discovery 1987 3.3 h Earl Nightingale's The Strangest Secret 2006 1.9 h