Knihy autora Koch Richard

How anyone can be more effective with less effort by learning how to identify and leverage the 80/20 principle--the well-known, unpublicized secret that 80 percent of ...viac o knihe

The 20th anniversary expanded edition of the classic book that will revolutionise both your work-life and your home-life, including brand new chapters ...viac o knihe

Millions of highly effective people have become more successful by understanding the simple fact that 80% of your results come from 20% of your efforts. All you have to ...viac o knihe