Boeken
Audioboeken
The 80/20 Principle: The Secret to Success by Achieving More with Less (Unabridged)
2014
The 80/20 Principle: The Secret of Achieving More with Less (Unabridged)
2007
The Star Principle: How It Can Make You Rich (Unabridged)
2009
The 80/20 Manager
2014
Unreasonable Success and How to Achieve It
2020
Das 80/20-Prinzip : Mehr Erfolg mit weniger Aufwand
2019