80/20 Your Life: Work Less, Worry Less, Succeed More, Enjoy More - Use The 80/20 Principle to invest and save money, improve relationships and become happier - Richard Koch (Paperback) 06-08-2020
Beyond the 80/20 Principle: The Science of Success from Game Theory to the Tipping Point - Richard Koch (Paperback) 06-08-2020
The 80/20 Manager: Ten ways to become a great leader - Richard Koch (Paperback) 02-04-2015
Unreasonable Success and How to Achieve It: Unlocking the Nine Secrets of People Who Changed the World - Richard Koch (Paperback) 13-08-2020
