The four quadrants
In this follow-up to Rich Dad Poor Dad, Kiyosaki divides the ways people earn money into four quadrants. E stands for employee, S for self-employed or small business owner, B for big business owner and I for investor.
Most people earn in the E or S quadrants, where income depends on their own time and effort. Kiyosaki argues that financial freedom usually comes from the right side, B and I, where systems and money do the work.