IBDP Core • Theory of Knowledge • Written by the PrepSeven Editorial Team, reviewed by certified IB Examiners

The Complete IB TOK Exhibition Guide: Objects, Commentary and Examples

Since the 2022 TOK syllabus overhaul, the exhibition has sat alongside the essay as one of the two assessed components of Theory of Knowledge — and for many students, it’s the more disorienting of the two. There’s no prescribed title to respond to, no traditional essay structure, and the entire task hinges on something that sounds almost too simple at first: choose three real objects and explain how each connects to a knowledge question. In practice, the exhibition is deceptively demanding. It asks you to do in roughly 950 words what the TOK essay does in 1,600 — construct a genuine argument about knowledge — while working through concrete, physical (or photographed) objects rather than abstract discussion. This guide, built by PrepSeven’s certified and former IB examiners, breaks down exactly how the exhibition works, how to choose objects that will actually support strong commentary, and how to avoid the mistakes that hold most exhibitions back from the top markbands.

What Is the TOK Exhibition, Exactly?

The exhibition asks you to select one IA prompt from an IB-provided list of knowledge-question-style prompts, then choose three objects — each either a physical object you own or have access to, or an image of a specific, real object — and write a commentary connecting each object to the prompt through your own knowledge question. Unlike the essay, which is submitted as a traditional written response, the exhibition is framed as a presentation: you’re meant to imagine your objects and commentary as if they were genuinely being displayed for an audience, which is why object choice and visual presentation carry real weight.

Understanding the IA Prompts

The IA prompt list contains a range of knowledge-question-style prompts — questions like ‘what counts as knowledge?’, ‘are some types of knowledge more useful than others?’, or ‘what is the relationship between personal experience and knowledge?’ Your task is to choose one prompt that you can genuinely explore through three well-chosen objects, not simply the prompt that sounds easiest at first glance.

Before committing to a prompt, sketch out roughly what three objects you might use and what each would say about the prompt. If you can’t picture at least two plausible objects fairly quickly, the prompt may not be the right fit for the specific knowledge angle you want to take — it’s far better to discover this in the planning stage than after you’ve written most of your commentary.

Choosing Objects: The Single Biggest Factor in Exhibition Quality

If there’s one skill that separates strong exhibitions from average ones, it’s object selection. A generic object chosen because it’s convenient (a smartphone, a school textbook) tends to produce generic, surface-level commentary. A specific, personally significant, or unusually well-chosen object tends to unlock a much more precise and interesting discussion.

What Makes an Object ‘Good’ for TOK

• Specificity: a specific, named object (your grandmother’s specific sewing machine, a specific 1962 newspaper front page, a particular annotated textbook you used) works far better than a generic category (‘a machine’, ‘a newspaper’, ‘a book’).
• A real connection to your knowledge question: the object should illustrate something concrete and specific about how knowledge is produced, justified, shared, or contested — not just be thematically related to the prompt’s general topic.
• A story or context you can genuinely unpack: objects with some history, controversy, or personal context behind them give you more to say than an object chosen purely for its symbolic resemblance to the topic.
• Variety across your three objects: choosing three objects that are all essentially the same type of thing making the same point limits how much your commentary can develop. Strong sets often span different contexts — personal, historical, disciplinary.

Writing the Commentary: What Each Object Discussion Needs

For each of your three objects, your commentary should do more than describe what the object is or tell its story. It needs to explicitly connect the object to your specific knowledge question and to your chosen IA prompt, and it should demonstrate genuine TOK thinking — engaging with how knowledge is produced, who produces it, what justifies it, or what limits it.

1. Introduce the object concretely: describe what it is, including enough specific detail that a reader unfamiliar with it understands exactly what you’re discussing.
2. State your specific knowledge question for this object: this should connect clearly to your chosen IA prompt but be sharpened into something precise and answerable through this particular object.
3. Explain the object’s real-world context: where does it come from, who made or used it, and what circumstances surround it? This context is often where the actual TOK insight lives.
4. Analyse what the object reveals about knowledge: this is the core of the commentary — use the object as evidence for a genuine claim about how knowledge is produced, shared, justified, or contested.
5. Link back explicitly to the IA prompt: make the connection between your specific discussion and the broader prompt unmistakable, rather than leaving the reader to infer it.

How the Three Objects Should Work Together

A common mistake is treating the exhibition as three entirely separate mini-essays that happen to share an IA prompt. The strongest exhibitions build a cumulative argument — the second and third objects should add something new (a contrast, a complication, a different angle on the prompt) rather than simply repeating the same point with different props. Before finalising your object choices, ask: does each object teach the reader something the others don’t? If two of your three objects are making essentially the same argument, consider swapping one out for something that introduces genuine contrast.

Presentation and Format Considerations

Because the exhibition is conceived as a presentation rather than a traditional essay, presentation choices matter more here than in most other IB assessments. If you’re using photographs of your objects rather than displaying the physical items, choose clear, well-lit, unambiguous images that show the specific details your commentary discusses — a blurry or overly artistic photo that obscures the relevant detail works against you. Captions or labels should be concise and should not simply repeat your commentary word for word.

• Use clear, well-composed images if working with photographs rather than physical objects
• Make sure any text visible in the object itself (labels, handwriting, print) is legible in your image
• Keep formatting clean and consistent across all three objects rather than varying wildly in style
• Respect the overall word limit for your commentary — padding with unnecessary description wastes words that should go toward analysis

How the TOK Exhibition Is Assessed

Like the TOK essay, the exhibition is assessed holistically rather than through itemised criteria. Examiners are looking for a clear and specific knowledge question tied to your chosen IA prompt, objects that are specific and well-justified rather than generic, commentary that does real analytical work connecting each object to knowledge production or justification, and a sense that the three objects build toward a coherent overall exploration of the prompt rather than three disconnected observations.

As with the essay, depth and specificity consistently outperform breadth. An exhibition that explores one sharp, well-defined knowledge question through three carefully chosen, specific objects will typically score higher than one that tries to cover multiple loosely related ideas across generic objects.

Common Mistakes That Hold Exhibitions Back

• Choosing generic objects: objects picked for convenience rather than genuine relevance produce commentary that stays at the surface level.
• Treating objects as illustrations rather than evidence: describing an object and simply asserting a connection to knowledge, rather than using the object’s specific details as actual evidence for an argument.
• Repetition across the three objects: choosing three objects that all make essentially the same point wastes the opportunity to build a more layered, cumulative argument.
• Losing sight of the IA prompt: getting so absorbed in an interesting object’s story that the explicit connection back to the chosen prompt becomes thin or implicit.
• Overly personal, under-analysed commentary: a moving personal story about an object is a good starting point but needs to be paired with genuine TOK analysis, not left to speak for itself.
• Weak or unclear images: low-quality photographs that don’t clearly show the specific detail your commentary discusses undercut an otherwise strong response.

A Practical Planning Process

6. Shortlist three or four IA prompts: that genuinely interest you, rather than picking the first one that seems easy.
7. Brainstorm possible objects for each shortlisted prompt: aim for at least four or five candidate objects per prompt before narrowing down.
8. Test each candidate object: by drafting a rough one-paragraph knowledge question and commentary sketch — if nothing interesting emerges quickly, the object may not be strong enough.
9. Select your final three objects: aiming for variety in context and a cumulative, non-repetitive argument across all three.
10. Draft, get feedback, and revise: with particular attention to whether each object’s analysis is specific enough and clearly tied back to your IA prompt.

How PrepSeven Helps With Your TOK Exhibition

PrepSeven’s tutors, all certified or former IB examiners, work with students through exactly the stages that determine exhibition quality: choosing an IA prompt that genuinely fits their interests, brainstorming and pressure-testing object choices before commitment, and reviewing commentary drafts specifically for the kind of analytical depth and specificity examiners reward.

• One-on-one sessions to choose an IA prompt and brainstorm strong, specific object candidates
• Feedback on whether your three objects build a cumulative argument or simply repeat one point
• Detailed commentary review focused on analytical depth, not just descriptive accuracy
• Guidance on presentation choices, including image selection and formatting

Frequently Asked Questions

Q1. What counts as an acceptable object for the TOK exhibition?

An object can be a physical item you own or have access to, or a photograph of a specific real object — it should not be a generic stock image or an entirely invented or symbolic object. The more specific and personally or contextually significant the object, the more you’ll typically have to say about it.

Q2. Can all three of my objects be photographs rather than physical items?

Yes, this is common and acceptable, provided the images are clear, specific, and show the relevant details your commentary discusses.

Q3. How formal should the exhibition commentary be?

It should maintain the same analytical rigour and precise use of TOK vocabulary as the essay, even though the format is different — commentary that’s too casual or purely descriptive won’t demonstrate the level of critical thinking examiners are assessing.

Q4. Can my three objects be very similar to each other?

They can share a theme, but if all three make essentially the same point, you lose the opportunity to build a more layered, cumulative exploration of your IA prompt — aim for objects that each add something distinct.

Q5. How do I choose between the exhibition and essay if I could excel at either?

Both are compulsory — every DP student completes both the TOK essay and the TOK exhibition, so this isn’t a choice between the two, only a question of how much preparation time to allocate to each based on where you currently feel less confident.

Q6. What if I can’t think of a good object for my chosen prompt?

This is a sign to test your prompt choice more rigorously before committing — brainstorm a wider range of candidate objects, or consider whether a different IA prompt might connect more naturally to objects you already have genuine access to and knowledge about.

Q7. Is a personal or sentimental object a good choice?

It can be, provided you go beyond the personal story itself and use the object as genuine evidence for an argument about knowledge — sentimental value alone, without analytical development, won’t carry the commentary.