Johari window

The Johari window maps what a person knows about themselves against what other people know about them. Joseph Luft (1916–2014) and Harry Ingham (1914–1995) designed it to support self-awareness, feedback, disclosure and interpersonal learning.

When to use it

• Use the window in coaching, team development and reflective practice when participants can choose what to disclose and feedback can be given safely.

Origins

Psychologists Joseph Luft (1916–2014) and Harry Ingham (1914–1995) introduced the model during group-development work in the mid-twentieth century. Its name combines parts of their first names. The framework was designed as a conversational aid, not a clinical assessment or a licence to demand personal disclosure.

What it is

The model has four areas:

                                                Known to self                      Not known to self
Known to others                                 Open/free area                     Blind area

1. 2 Not known to others

                                                Hidden area                        Unknown area

1. 4

• Quadrant 1 — open: information, behaviour, knowledge and experience known both to the person and others. Clear communication and appropriate disclosure can enlarge it, but openness is not inherently better than privacy.
• Quadrant 2 — blind: patterns others observe that the person does not recognise. Specific, behaviour-based feedback can move useful information into quadrant 1.
• Quadrant 3 — hidden: information known to the person but not others. Some concealment can impede trust; much of it is legitimate privacy. Disclosure should be voluntary, purposeful and proportionate.
• Quadrant 4 — unknown: capability, response or feeling not yet recognised by anyone. Experiment, learning, coaching and new situations may reveal it.

How to use it

Choose a defined purpose, such as improving collaboration or understanding a recurring communication problem. Individually note relevant material in the four areas, keeping sensitive information private unless the person freely chooses otherwise.

Invite feedback from trusted people using observable examples and impact, not labels. The recipient listens, asks for clarification and decides what to test. If a behaviour identified in quadrant 2 changes, return to the feedback providers and ask what they now observe.

Consider whether selected information in quadrant 3 would help colleagues coordinate, understand constraints or build trust. Weigh benefit against privacy, role boundaries and the fact that disclosed information cannot be fully retrieved or controlled.

Explore the unknown area through low-risk assignments, reflection, coaching or training. Do not infer hidden trauma, ability or motive from an empty box. Use quadrant 1 as a working area: feedback can move useful material into quadrant 1, while appropriate disclosure can also enlarge quadrant 1.

For teams, establish consent, confidentiality boundaries and a no-retaliation norm. Managers should not use positional power to press for personal revelations. The claim that leaders cannot be friends with team members is too absolute; the practical requirement is to maintain fair decisions, professional boundaries and duty of care.

The exercise creates value only when feedback can be assessed and acted on. People may disagree with feedback, and accuracy should be tested rather than treating every perception as truth.

Top practical tip

Ask for one specific observation and its impact, then run a small behavioural experiment and return to the same people for follow-up.

Top pitfall

Never equate team development with compulsory disclosure. Privacy, psychological safety and power differences determine what is appropriate to share.

Further reading

Luft, J. and Ingham, H. (1955) “The Johari window: a graphic model of interpersonal awareness,” Proceedings of the Western Training Laboratory in Group Development, Los Angeles, CA: UCLA Extension Office.