The book has a strong and sufficient effect to change one's life.Most of the aspects affirmed in 5 killer habbits strongly give emphasis on self discipline.Most of the things that are not taken seriously seem to be all that keeps one going for instance circumventing staying up late and being an early bird too.
5 killer habbits also dwelled on the elimination of some 'bad' habbits that are normalised in the day to day lives of teenagers examples being having days that are labelled as partying days where drugs are abused and time is wasted.A displined morning routine is said to be ideal for doing away with the habbits and would result in greater contribution in humanity.
To conclude,the book is quite interesting to read and more helpful in having a meaningful and not a directionless life.It promotes self discipline!