"Johari Window" is a general tool for organizational development, coaching, management tool for teams, a self-development tool (about own behavior) and can create an understanding of:

• How to communicate with yourself and with others.
• How to present yourself and others.
• How you perceive your place in the world and how others see you.

There are four perspectives in the window:

The four perspectives:

1. Arena.
   What is known to the person and what is also known to others. Eg. your name, your eye color etc. You can and should increase the size of this region by increasing Exposure and Feedback Solicitation. (diagram 2)
2. Blind Spot. 
   That which is unknown to the person, but which others know. For example: your manners and how others feel about you.
3. Facade. 
   What the person himself knows, but which others do not. Eg. your secrets, your hopes, desires, what you like and what you don't like.
4. The unknown.
    That which is unknown to the person and which is also unknown to others. This information has an unknown potential to affect the rest of the “Johari Window”.

At the beginning of a communication process, when you meet someone, the size of the "Arena quadrant" is not very large, as there has been little time and opportunity to exchange information. The general rule of thumb is that you should try to expand the “Arena” to the dominant window, thus demonstrating transparency, openness and honesty in the interaction (diagram 2). When you do this, the other party is likely to open up as well.

When writing about this model, reference is often made to ("self"). But by changing the word "self" to "team", the model allows for a team approach.

Johari Window – History

The Johari Window was developed by American psychologists Joseph Luft and Harry Ingham in the 1950s while researching group dynamics. Today, JW is particularly relevant because the modern focus on soft skills, behaviour, empathy, cooperation, group development and interpersonal development has gained ground. "Johari" is a combination of the psychologists' first names, Joseph and Harrington. The Johari Window only later became a widespread and applied model to understand and train self-awareness, personal development, to improve communication and to understand interpersonal relations, group dynamics, team development and inter-group relations.