I think this science is useful and helpful,but i think if any one want to improve himself ,he can with out need to study this scienc.

these days many people who need to improve himself he think he must study then he will change

no..

we can learn from our failures,from other people

fromthings happening around us

also we can learn by watching ourselves

and we must know that if we want change our self we need only decision then we will change.