Read the whole short book right there on line. You will never be fooled again by the pols. You will have the contrary immediately in your mind when you hear some pol's utopian scheme or government fix-it.
We cannot continuously have the fullest production without full employment. But we can very easily have full employment without full production. So, if one person could supply ALL of the needs for the entire country for food, housing and consumer goods, would we better off or worse off?