Richard Koch

Books
The 80/20 Principle The 80/20 Principle
The 80/20 Principle
2022
Living the 80/20 Way Living the 80/20 Way
Living the 80/20 Way
2011
The 80/20 Manager The 80/20 Manager
The 80/20 Manager
2013
Beyond the 80/20 Principle Beyond the 80/20 Principle
Beyond the 80/20 Principle
2020
80/20 Sales and Marketing 80/20 Sales and Marketing
80/20 Sales and Marketing
2013
O Princípio 80/20 O Princípio 80/20
O Princípio 80/20
2026