The objective of this article is to create awareness that each person is a mystery.There are things we know about ourselves that other people know and there are those that we dont know that other people know. There are those that we know yet people do not know and there are those that no one knows.It relates to how people give feedback about behaviour to enable them deal positively with the unhelpful behaviours. THE JOHARI WINDOW THEORY This theory is a good introduction to any exercise on feedback.Each person is a mystery,partly known and partly unknown.The window was designed by Joe Luft and Harry Ingham.It helps us to understand how we can grow in self knowledge and how we can build deeper trust in teams by sharing. The window represents self, the whole person.The 4 panes of the window can be desribed as follows: FREE: The part of yourself which is known to you and others.It is the area of mutual sharing. HIDDEN: This part is known to you but not shared with others What is hidden may best remain hidden. BLIND: This part is known to others but unknown to you .The tone of your voice,the smell of your breath, a good trait of which you are not aware-all may be in this area. MYSTERY- The part of yourself which is unknown to others and also unknown to self.Here are talents and abilities which you do not yet know you have and others have never seen.But they are part of you nevertheless, and may one day come to the surface.