Johari window in coaching: a practical guide and template

What is the Johari window, and how do coaches use it?

In short: the Johari window is a self-awareness tool that splits a person's awareness into four quadrants based on what they know about themselves and what others see: the open, blind, hidden and unknown areas. In coaching, it names a client's blind spots and grows the part of themselves they both know and own, which often unlocks situations that had stayed vague.

Plenty of coaches recognise the Johari window by name without ever really using it, because it tends to be taught as a slightly abstract management diagram. That is a missed opportunity. Run well, it does something few exercises manage so quickly: it puts words to what a client senses but has not admitted, and to what the people around them see but never dare to say.

This guide takes the tool from the practitioner's side: where it comes from, what its four quadrants hold, how to run it in a one-to-one session (where it needs adapting, since it was designed for a group), the well-known list of adjectives, its limits, and how to make the insight it triggers actually last.

The four quadrants of the Johari window

The model was created in 1955 by two American psychologists, Joseph Luft and Harrington Ingham, whose first names gave it the name "Johari". The idea fits in a square divided into four: on one axis, what the person knows or does not know about themselves; on the other, what others know or do not know about them.

The work, in coaching as in life, is to grow the open quadrant at the expense of the other three. The blind area shrinks through feedback, the hidden area shrinks through disclosure, and the unknown area surfaces slowly through experience and reflection.

Why the Johari window is a valuable coaching tool

Its usefulness in a session is twofold. First, it gives a shared language for something delicate. Telling a client they have "a blind spot around interrupting people" is far easier to hear than a blunt judgement. The model depersonalises the feedback and frames it as a normal thing everyone has.

Second, it makes a common but fuzzy coaching goal, "raising awareness", concrete. Instead of a vague intention it becomes a specific move: which quadrant are we trying to light up, and by what means. It pairs well with an early stocktake using the wheel of life, which maps a client's life areas, where the Johari window maps their self-knowledge instead.

How to run the exercise in one-to-one coaching, step by step

The Johari window was designed for a group, where several people give each other feedback. In one-to-one coaching you have to adapt it: the coach becomes the outside view, and sometimes the client's circle is enlisted between sessions. A sequence that works well:

1. Set the frame. Draw the four quadrants and explain the intent: to grow, together, what the client knows and owns about themselves, without judgement. Remind them that everyone has blind spots, you included.
2. Map the open quadrant. Ask the client to name a few traits they know about themselves that others see too. This lays a reassuring base before the harder areas.
3. Explore the hidden quadrant. Open a safe space for what they keep to themselves: "What do the people close to you not suspect about you?" Disclosure happens at their pace, never under pressure.
4. Light up the blind quadrant. Share what you observe in session with care, framed as a hypothesis: "I notice that... does that resonate?" This is the heart of the work, and the most delicate part.
5. Touch the unknown quadrant. Close with open questions about talents or blocks not yet explored, without trying to resolve everything.
6. Choose one focus. Help the client pick one quadrant to work on and a concrete first step, tied to their coaching goals.

The feedback in step four takes real skill: it is the whole difference between a comment that opens a client up and one that shuts them down. The quality of your active listening directly sets the safety in which a client can take in what you reflect back.

The list of adjectives: how to use it

In its original form, the exercise uses a list of fifty-five adjectives (able, calm, dependable, nervous, spontaneous, reserved, and so on). The person picks five or six that describe them, their peers each pick some too, and then you compare: shared adjectives populate the open quadrant, those chosen only by others map the blind quadrant, and those chosen only by the person form the hidden quadrant.

In a one-to-one setting you can reuse this mechanism as homework between sessions: the client picks five adjectives for themselves, and asks three trusted people to pick five for them. The next session is then spent comparing the lists. The gap between the self-image and the received image is often the richest material of the whole engagement, and a natural home for a round of powerful coaching questions.

Limits and pitfalls to avoid

The Johari window has blind spots of its own. The first trap is forcing disclosure: a hidden area is shared when trust is there, never because an exercise demands it. Pushed too fast, the session turns intrusive and the client closes up.

The second trap is confusing feedback with judgement. A comment on the blind quadrant describes an observable behaviour and its effect, not a label on the person. And, like the wheel of life, the tool is only worth anything if you return to it: a blind spot named in March and forgotten by June has changed nothing. Awareness is only a start; the work is in the follow-through.

Keeping the memory of the insight

This is where the tool's real value lives or dies. A Johari window that matters is one you reopen: revisiting in session nine the blind spot you spotted in session two, checking what has shifted, adjusting. That requires finding what was actually said, in what context, and what the client committed to observe. That thread is exactly what gets lost when a client's history is scattered across notebooks and documents, a problem we cover in how to measure client progress.

This is the quiet work Klarity is built to carry: a longitudinal memory of each client that keeps the thread of your tools and your sessions, so you can reopen an insight months later with its full context already there. You walk in with the briefing before every session instead of rebuilding it from memory. You can start free and let the tool hold the thread so you can stay with the person.

Frequently asked questions

What is the Johari window?

The Johari window is a self-awareness model created in 1955 by psychologists Joseph Luft and Harrington Ingham. It maps what a person knows about themselves against what others perceive, producing four quadrants: open, blind, hidden and unknown. In coaching, it makes a client's blind spots visible and helps grow the part of themselves they both know and own.

How do you use the Johari window in one-to-one coaching?

In a one-to-one session the coach plays the role of the outside observer: sharing what they notice, with care, to shrink the blind quadrant, and creating enough safety for the client to disclose what they had kept private, which shrinks the hidden quadrant. You can also ask the client to gather a little feedback from trusted people between sessions and explore it together.

What is the difference between the blind and hidden quadrants?

The blind quadrant holds what others see in a person but they cannot see in themselves, such as a sharp tone in meetings. The hidden quadrant holds what the person knows about themselves but chooses not to show, like a private doubt or ambition. The first shrinks through feedback, the second through voluntary disclosure.