The map that comes after the paycheck
Kiyosaki gives a name to a simple drawing: a square divided into four letters, E, S, B and I. Each one marks a different way of getting money into your account, not how much money comes in, but what source it comes from. Two people can earn the same paycheck at the end of the month and be on completely different sides of this quadrant, paying different taxes and carrying different risks.
The letter E is for employee: someone who trades hours of work for a paycheck, whether formally employed or not. The letter S is for self-employed: someone who also trades hours for money, but with no boss, owning their own job. B is for business owner: someone who builds a system that generates revenue even when they aren't there. I is for investor: someone who puts money to work on their behalf, without trading hours for anything.
The central point of the book is that the left side of the quadrant, E and S, depends on the direct effort of the person working. The right side, B and I, depends on systems and capital that keep paying off even while you sleep. It isn't about being more hardworking or smarter, it's about what kind of engine a person has put their own energy into.
