The Johari Window: building self-awareness as a manager

Joseph Luft and Harrington Ingham published the model in 1955 while running group-dynamics work at the University of California. The name is simply their two first names run together — Joe and Harry. They originally called the quadrants the arena, the blind spot, the façade and the unknown, and offered a list of 56 adjectives as a practical way to populate them.

The reason it has survived seventy years is that it makes one uncomfortable idea concrete: there is a version of you that your team can see and you cannot, and the only route to it is through other people.

The four quadrants

The model's argument is that effectiveness grows as the open area grows, and there are exactly two mechanisms for growing it:

• Feedback moves material from blind spot to open. It requires other people to be willing to tell you.
• Self-disclosure moves material from hidden to open. It requires you to be willing to say it.

The unknown shrinks more slowly and mostly by accident — through new work, new pressure, coaching that asks a question nobody has asked you before, or someone else's observation triggering a realisation.

Two things frequently get taught wrongly. First, the goal is not to eliminate the hidden area. Some things are legitimately private, and a manager who discloses everything is not admirably transparent but exhausting and sometimes unprofessional. Second, the quadrants are relationship-specific: your open area with a colleague of ten years is not your open area with someone who joined last month, and the window you draw is always "me with these people".

Applied in a UK workplace

A newly promoted operations manager runs a team of nine, six of whom were peers a month ago.

The blind spot in practice. She believes she runs consultative meetings. Two things are visible to the team and not to her: she answers her own questions within about three seconds of asking them, and she uses the phrase "quick sanity check" before overriding a decision. Nobody has told her, because she is new, well-liked, and it feels petty. Her blind spot is not a character flaw — it is a behavioural habit with a real cost, since her team has quietly stopped offering views in meetings.

Getting at it. "Any feedback for me?" reliably produces "no, all good". What works better:

• Ask a narrow question about a specific event. "In yesterday's planning meeting, was there a point where you wanted to disagree and didn't?"
• Ask for one thing, not everything. "What's the one thing I do that makes it harder for you to do your job?"
• Use a route that dilutes the power gap. A short anonymous form, a skip-level conversation with her own manager, or a peer who will be blunt.
• Then act visibly. She starts counting to five after asking a question. Within a month two people raise it approvingly — and that is the real signal, because they now believe feedback changes something.

Disclosure, done proportionately. She tells the team that she is unsure how to handle the reporting line to the depot and is working it out — which reduces the guesswork about her silences. She does not share her opinion of her predecessor, or her worry about the restructure, because neither helps the team and one of them is not hers to share.

The unknown quadrant, briefly. Six months in, an unplanned incident requires her to run a shift with half the staff. She discovers she is good under acute pressure and poor at the subsequent debrief — neither of which she or the team knew beforehand. That is what the unknown quadrant looks like when it moves.

Criticisms and limitations

• It is a metaphor, not a measure. There is no way to size the quadrants, no validated instrument behind it, and the adjective exercise is a prompt rather than an assessment. Presenting a drawn window as a diagnosis overstates it considerably.
• It assumes psychological safety that often does not exist. In a low-trust team, or where the power gap is wide, honest feedback carries risk. The model tells you feedback shrinks the blind spot; it says nothing about how to make it safe to give — the harder problem, and where Edmondson's work on psychological safety is more useful.
• It can license inappropriate disclosure. "Growing the open area" has been used to justify oversharing in a professional setting, and in team exercises to pressure people into disclosing things they have every right to keep private. Participation should be voluntary.
• Feedback is not automatically accurate. The blind spot quadrant is described as "known to others", but others' perceptions carry their own bias, incomplete information and, sometimes, agenda. Two colleagues may report opposite things. Treat feedback as data about your impact rather than the truth about you.
• It is individual and static. It says nothing about the systemic causes of behaviour — workload, structure, incentives — and nothing about how the picture changes as a relationship develops.
• Cultural variation is real. Norms around directness and self-disclosure differ substantially across cultures and workplaces; the model was developed in a mid-century American group-work tradition and its assumptions travel imperfectly.

How to evidence this in your ILM portfolio

The Johari Window is one of the most portfolio-friendly models in the field, because personal development is a mandatory-adjacent theme at both levels and the model produces exactly the artefacts assessors want.

Level 3 — Unit 302 Managing personal and professional development and Unit 301 Developing effective leadership skills. Evidence that works:

• Your personal and professional development plan, with a development need that came from feedback rather than self-assessment alone.
• The feedback itself — a completed feedback form, a summary of a 360 exercise, or notes from a one-to-one with your manager, appropriately anonymised.
• A reflective account of a specific blind spot: how you found out, what you changed, and what evidence you have that the change stuck.
• Unit 312 Effective communication where the behaviour in question was about communication or listening.

Level 5 — Unit 502 Managing own continuing personal and professional development and Unit 501 Assessing own leadership performance. Note that Level 5 asks for the impact of your development on the organisation, so it is not enough to say you became more self-aware: link the change in your behaviour to a measurable or observable effect — meeting participation, retention in a team, a project decision that went differently.

Also useful: Unit 505 Coaching and mentoring in a leadership role at Level 5, where feedback and disclosure are the practical mechanics of a coaching relationship, and Unit 507 Leading and managing wellbeing in the workplace if the self-awareness work touched on your own or others' wellbeing.

Handle other people's contributions carefully. Feedback given to you about your behaviour often reveals things about the giver, and portfolio evidence should be anonymised — "a team member reported that…" rather than a named quote, unless they have agreed. See reflective account examples and self-appraisal examples for managers.

Where to go next

• Self-appraisal examples for managers — writing the self-assessment this feeds.
• Coaching vs mentoring — the conversations that move the unknown quadrant.
• Goleman's six leadership styles — self-awareness as the foundation of style flexibility.
• Ready to qualify? Compare ILM Level 3 and ILM Level 5.