Left side or right side

It has not come up recently but every once and a while the question comes up is it left or right,looking from the front or back?
Shop manuals and parts books are all diagrammed the same. Here in the US the drivers side(left side) is always the left from either the front or rear. Some might say that a scooter or motorcycle is center steering.It is still the same. Just my 2 cents worth.

I have always been taught left or right is defined as when sitting in(or on) the drivers seat.