The Secret of Success by Achieving More With Less.Learn how you can tap the hidden potential of the 80/20 principle in your life.Richard Koch is a highly successful entrepreneur and investor. The 80/20 Principle--that 80 per cent of results flow from just 20 per cent of the causes--is the one true principle of highlyeffective people and organisations.In one of the decade's most original, provocative and powerful books, The 80/20 Principle shows how...