The 80/20 Principle and 92 Other Powerful Laws of Nature: The Science of Success About the Author Richard Koch is a highly successful author, investor and entrepreneur, having made large returns from businesses as diverse as hotels, restaurants, personal organisers and consulting. He is a former partner at consulting firm Bain and Co and co-founder of the LEK Partnership, the fastest growing and most profitable 'strategy boutique' of the 1980s.