PRODUCT BUILDERJakub KulhanJK
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Communication

Expressing ideas clearly in any medium – written, spoken, or visual. The multiplier skill that makes all other skills more effective. A Product Builder who communicates well eliminates the friction that usually requires a dedicated person in each role.

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Communication
ACTIVITIES

What you need to do

The practical activities and techniques you need to master – what to practice, what to get good at, and what to keep doing.

Written communication

Writing emails, Slack messages, documents, specs, and async updates that don't require follow-up questions. The bar: can the reader take action without asking you to clarify? For Slack, use threads, lead with the ask or decision needed, and provide context below. For emails, put the action item in the first sentence. For async updates, structure as: what changed, why it matters, what's needed from the reader. Technical writing – PRDs, specs, ADRs, and runbooks – follows the same principle: can someone who wasn't in the room make the same decision you would? If not, you've left out critical context.

Meetings

Running fewer, shorter, better-structured meetings. Every meeting needs: a clear purpose (decide, brainstorm, align, or inform), an agenda shared in advance, a facilitator who keeps discussion on track, and written outcomes shared afterward. If the purpose is 'inform,' it should be an async document instead. Amazon's approach: start with silent reading of a prepared document, then discuss – this ensures everyone has context and rewards prepared thinking over quick talking. The test: if nobody changes their behavior after the meeting, the meeting was unnecessary.

Presentations

Structuring decks and live demonstrations that land with different audiences. For executives: lead with the recommendation, not the analysis – they want to know what you're recommending, why they should approve it, and what happens if they don't. For product demos: frame around the customer's goals, not your features. For team demos: show working software, not slides. Structure any presentation as: context (what's happening), tension (why it matters now), and resolution (what we should do). Use the 'rule of three' for main points – audiences retain three ideas far better than five or seven.

Visual communication

Using diagrams, flowcharts, and system maps to explain ideas that words alone can't convey. Excalidraw is popular for its speed and hand-drawn aesthetic. Miro provides collaborative whiteboarding with templates. Use flowcharts to show processes, system diagrams to show architecture, sequence diagrams to show interactions over time. The principle: if you're explaining something with more than two paragraphs of text, draw it instead. Data storytelling combines trustworthy data, purposeful visualization, and narrative context to present metrics as insights that drive decisions.

Public speaking

Delivering conference talks, team demos, and executive updates with clarity and confidence. Structure talks around one core message – if the audience remembers one thing, what should it be? Open with a hook: a surprising statistic, a provocative question, or a relatable story. Use the 'rule of three' for main points. For conference talks: rehearse the first two minutes until they're automatic – nerves are highest at the start. For executive updates: present the recommendation first, then the supporting evidence.

KEY FRAMEWORKS

Frameworks to know

The mental models and structured approaches that guide how you think about this skill – not rules to follow, but lenses to see through.

Situation-Behavior-Impact (SBI)

A framework for delivering feedback that's specific, non-judgmental, and actionable. Situation: describe the specific context ('In yesterday's sprint review…'). Behavior: describe the observable behavior, not your interpretation ('You presented the feature without mentioning the known limitations…'). Impact: describe the effect on you, the team, or the project ('…which led the stakeholders to approve a timeline that doesn't account for the remaining work'). SBI works for both positive and constructive feedback. It separates observation from judgment, making feedback easier to receive and act on. Pair with 'what I'd suggest' for constructive cases.

Made to Stick (SUCCESS)

Chip and Dan Heath's framework for ideas that stick in people's minds. Simple: find the core message and express it compactly. Unexpected: break patterns to get attention – surprise makes people pay attention. Concrete: use specific examples and sensory details, not abstractions. Credible: use statistics, authorities, or testable credentials. Emotional: make people feel something – connect to identity or self-interest. Stories: use narratives that simulate and inspire. Apply SUCCESS to: product pitches, launch announcements, roadmap presentations, and any communication where you need the audience to remember and act. The enemy of sticky communication is the 'Curse of Knowledge' – once you know something, you forget what it's like not to know it.

THE PRODUCT BUILDER WAY

Good vs. bad

Common mistakes paired with what experienced practitioners do instead – and why the product builder approach changes the game.

Wall of text in Slack
A 500-word message in a public channel with no formatting, no clear ask, and three different topics mixed together. Readers skim it, miss the important part, and nobody responds. The sender follows up with 'Did anyone see my message?' creating more noise.
Structured async message with clear ask
Lead with the ask: 'Decision needed: should we ship Feature X this sprint or next?' Then context in bullet points. Then the specific question for each person tagged. Use threads for follow-up discussion. The message is scannable, actionable, and self-contained.
Feedback on the person, not the work
'You always overcomplicate things.' 'This design shows you didn't think it through.' Personal judgments that create defensiveness, damage trust, and ensure the recipient stops listening. The feedback might contain valid observations, but the framing makes it impossible to hear.
SBI feedback on behavior and impact
'In the checkout redesign (situation), the form has 12 fields on a single page (behavior), which our research shows causes 40% abandonment (impact). Could we explore progressive disclosure to reduce perceived complexity?' Specific, non-judgmental, actionable.
Building up to the conclusion
A 30-minute presentation that walks through research, analysis, methodology, and caveats before revealing the recommendation on slide 28. Half the audience has mentally checked out. The executive interrupted on slide 5 to ask 'what's the bottom line?' Conclusion-last communication wastes everyone's time.
Recommendation first, evidence second
Slide 1: 'We should invest in mobile onboarding – it will increase activation by 20% based on our cohort analysis.' Slides 2–5: supporting evidence. Slide 6: risks and mitigations. Slide 7: next steps. Executives get the decision in 30 seconds. Those who want depth can explore the evidence.
Code review as gatekeeping
'Just use a different approach.' 'This is obviously wrong.' 'Why would you do it this way?' Terse, judgmental comments that teach nothing and create an adversarial relationship between reviewer and author. Junior developers learn to fear code review instead of valuing it.
Code review as collaborative learning
'Have you considered using a Map here instead of an array? It would make lookups O(1) instead of O(n) – here's an example.' Start with what's good, ask questions to understand intent, suggest alternatives with reasoning. The PR comment is a teaching moment, not a test.
Meetings as the default
Every question becomes a meeting. 'Let's sync on this.' Calendar is packed 7 hours a day. Nobody has time to actually build anything. Meetings rarely have agendas, often run over, and produce no written outcomes. The same information gets repeated in three different meetings.
Async by default, meetings by exception
Write the document first. If discussion is needed, share it in advance and timebox the meeting to the specific decision points. Start with silent reading (Amazon style). End with written outcomes posted in the relevant channel. If the meeting could have been a document, cancel it and send the document.
Data without narrative
A dashboard with 30 charts and no explanation. 'Here's our metrics for Q1.' No context on what changed, why it matters, or what should happen next. Stakeholders nod politely, go back to their desks, and make decisions based on gut feel because the data didn't tell them anything actionable.
Insight-driven data presentation
'Activation dropped 15% this month. The drop is concentrated in mobile users from paid campaigns. Root cause: the new signup flow has a 4-second load time on 3G. Recommendation: optimize the mobile flow and pause underperforming campaigns.' Context, evidence, action.

Communication is the multiplier skill. A brilliant engineer who can't explain their architecture decisions writes code that gets rewritten. A brilliant PM who can't frame a problem clearly gets solutions that solve the wrong thing. The product builder advantage is that you're one person covering multiple roles – which means your communication doesn't lose context in handoffs. But it also means you need to communicate effectively across more dimensions: technical specs for engineers, business cases for executives, user stories for designers, and plain language for customers.

The biggest communication anti-pattern I see in product teams is meeting-as-default. Someone has a question, so they schedule a 30-minute call with five people. Four of them didn't need to be there. The question could have been answered in a Slack thread in two minutes. Async-first communication isn't just a remote work practice – it's a respect practice. It respects other people's time, their focus, and their right to respond when they're ready, not when you interrupted them.

I learned the power of the Pyramid Principle the hard way. Early in my career, I built up to conclusions – 20 slides of methodology before the recommendation. Executives would interrupt on slide 3 asking for the bottom line. When I flipped the structure – recommendation first, evidence second – everything changed. Not just in presentations, but in emails, PRDs, and Slack messages. Lead with the answer. Let people pull the reasoning if they need it.

AI has become my writing co-pilot, and it's made me a better communicator, not a lazier one. I write rough bullet points of what I want to say, Claude expands them into a polished draft, and I edit for accuracy and tone. The AI handles structure and fluency – the things I sometimes struggle with under time pressure. I handle judgment, context, and strategic framing – the things AI can't do. The result is communication that's both faster to produce and higher quality than what I'd write solo.

SOURCES

Go deeper

Books to deepen your understanding beyond what fits on this page.

Radical Candor
Radical Candor
Kim Scott · Book

How to be both direct and kind when giving feedback – the framework for caring personally while challenging directly, essential for design critiques, code reviews, and performance conversations.

Crucial Conversations
Crucial Conversations
Kerry Patterson et al. · Book

The definitive guide to navigating high-stakes discussions – tools for creating psychological safety, staying in dialogue when emotions run high, and reaching productive outcomes.

Made to Stick
Made to Stick
Chip Heath & Dan Heath · Book

Why some ideas survive and others die – the SUCCESS framework (Simple, Unexpected, Concrete, Credible, Emotional, Stories) for making any communication memorable and actionable.