✍️ Essay
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Free
Beginner
Why we picked it
Amy Hoy names the exact trap in this question: the person who swears they would pay "if only you added X" is, as she puts it, the most seductive of lies. She teaches you to weigh what people do over what they say, which is the whole point of separating a compliment from a commitment. It is short, blunt, and reads like advice from someone who has actually sold things.
From
Stacking the Bricks
by Amy Hoy
- "I'd pay if only..." is usually flattery or a bargaining move, not a real buying signal, so do not build your roadmap around it.
- Quiet, paying customers tell you more than loud enthusiasts who never open their wallet.
- Filter feedback by whether the person has skin in the game, not by how excited they sound.
Open
stackingthebricks.com →
📄 Article
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Free
Intermediate
Why we picked it
For B2B founders, a signed letter of intent is the cheapest way to turn "this sounds useful" into a costly commitment before you write any code. This piece lays out the LOI as one rung on a commitment ladder (say, LOI, contract, payment) and is honest that an LOI is a signal, not a guarantee. It gives you concrete language and structure rather than just theory.
From
Learning Loop
by Learning Loop
- An LOI asks a prospect to put their name and intent on paper, which costs them more than polite enthusiasm and filters out empty interest.
- Treat it as one step on a ladder toward an actual paid contract, not proof on its own.
- In B2B you need fewer but deeper signals: ten companies willing to sign beats a hundred landing-page clicks.
Open
learningloop.io →
📖 Book
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Paid
Beginner
Why we picked it
The single best thing ever written on customer conversations. It teaches you to ask about the customer's life and past behaviour, not your idea, so you can't be lied to. If a founder reads one thing before talking to a single customer, it's this.
From
momtestbook.com
by Rob Fitzpatrick
~130 pages
- Talk about their life, not your idea.
- Ask about specifics in the past, not opinions about the future.
- 'That's so cool, I'd totally buy it' is a compliment, not data, dig for commitment and evidence.
Open
momtestbook.com →
📄 Article
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Free
Beginner
Why we picked it
The cleanest distillation of the one framework that turns a customer chat into a relationship instead of a survey. The three rules (talk about their life not your idea, ask about the past not hypotheticals, and chase real commitments of time, reputation, or money) are exactly how you get an early customer to tell you what nearly stopped them from buying and who else you should talk to. Rekhi is a product leader, so the examples are operator-grade, not book-report fluff.
From
Sachin Rekhi's Blog
by Sachin Rekhi
10 min read
- Never pitch your idea in the conversation; ask how they handle the problem today and what it costs them, so praise can't lie to you.
- The strongest signal is a commitment that costs them something: a trial, an intro to a colleague, or a pre-order.
- 'Would you buy this?' teaches you nothing; 'walk me through the last time you dealt with this' surfaces the real story and the referral.
Open
sachinrekhi.com →
📄 Article
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Free
Beginner
Why we picked it
The idea that started the lean movement, from the person who coined it. No business plan survives first contact with customers, so stop defending assumptions at your desk and go test them on real people. Short, blunt, and foundational.
From
steveblank.com
by Steve Blank
~8 min read
- Your idea is a set of guesses until customers test it.
- Facts live outside the building, not in your plan.
- Expect to be wrong, and plan to learn from it.
Open
steveblank.com →
📖 Book
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Paid
Advanced
Why we picked it
The book that coined get out of the building and launched the customer development movement. Blank's core claim is that a startup searches for a business model rather than executes one, so your early job is to test hypotheses against real customers before you scale anything. It is heavier than The Mom Test, but it gives you the full framework for validating a market before you build for it.
From
Wiley
by Steve Blank
- Startups search for a business model, they do not just execute a plan
- Test your riskiest assumptions with real customers before committing to build
- Customer discovery and validation come before you spend on customer creation
Open
wiley.com →
📄 Article
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Free
Beginner
Why we picked it
The canonical fake-door test, told by the founder who ran it. Buffer started as a two-page site: one page pitched the tool, a pricing button led to an email capture, and every signup got a personal note. Real demand, real conversations, a paying customer in weeks, and not a line of product code.
From
Buffer
by Joel Gascoigne
~10 min read
- Test willingness to pay with a pricing page before you build.
- Email every signup by hand and start a conversation.
- A landing page measures behaviour, not opinions.
Open
buffer.com →
📄 Article
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Free
Beginner
Why we picked it
Nick Swinmurn tested whether people would actually buy shoes online by photographing shoes he did not own and buying them at retail only after a real order came in. The unit economics were terrible, but real orders, not survey answers, proved the demand that later raised the capital to build real inventory.
From
Alex Ponomarev
by Alex Ponomarev
8 min read
- Order velocity, not stated interest, is what proved the business idea.
- You can test a real purchase decision before you have built any real infrastructure behind it.
- It is fine to lose money on the test itself. The point is measuring whether people will actually buy.
Open
rocketstartup.co →
📄 Article
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Freemium
Intermediate
Why we picked it
The most concrete guide to actually measuring what customers will pay, including survey methods and tier design. It turns pricing from guesswork into a research-driven process.
From
lennysnewsletter.com
by Lenny Rachitsky & Patrick Campbell
long-form guide
- Measure willingness to pay directly through structured customer research
- Design tiers around distinct customer segments, not arbitrary feature bundles
- Localize pricing by market and currency to capture willingness to pay everywhere
Open
lennysnewsletter.com →
📄 Article
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Free
Intermediate
Why we picked it
To say no to the right requests you need feedback you can trust, and this shows how to get it by watching customers rather than just taking their asks. It reinforces that observing the struggle tells you more than the feature name they hand you. Practical field technique for separating a stated want from a real need.
From
First Round Review
by Michael Sippey
12 min read
- Watch what customers do, not only what they ask for
- Get close to the actual struggle to find the real problem
- Stated requests are a starting point for questions, not a spec
Open
review.firstround.com →
📄 Article
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Free
Beginner
Why we picked it
A candid Q&A where a top sales founder answers real early-founder questions on outreach, persistence, and closing. Primary-source, no content-farm fluff.
From
Stripe Atlas Guides
by Steli Efti / Stripe Atlas
~15 min read
- Persistence wins, Steli famously sent 48 emails to close one investor.
- Sell value and outcomes, not features.
- Treat sales as a learnable, repeatable skill, not a personality trait.
- Early founders should embrace, not avoid, direct selling.
Open
stripe.com →
📄 Article
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Free
Intermediate
Why we picked it
A direct answer to the exact question in the title: yes, charge for pilots, and here's roughly how much. Jason Lemkin argues that an unpaid pilot is really just an extended demo, and that even a modest fee changes how much attention and honesty you get back from the customer. Read this if you need a straight answer, not a framework.
From
SaaStr
by Jason Lemkin
- An unpaid pilot is an extended demo, not a real test
- Charge something meaningful enough that the customer feels it
- A paying pilot customer gives you more honest feedback than a free one
Open
saastr.com →
📖 Book
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Paid
Intermediate
Why we picked it
The book's central case study of an entrepreneur with six beta commitments and zero dollars spent on development is a direct illustration of what a real commitment looks like before you build. It is a useful structured process for founders who want a repeatable method, not just an essay's worth of principles.
From
Nathan Furr and Paul Ahlstrom
by Nathan Furr, Paul Ahlstrom
~230 pages
- A real commitment can be a signed beta agreement, not only a cash payment.
- If customers are asking when they can get the product or how to join a pilot, you have likely nailed the solution.
- Use early pilot customers to refine the offer before you commit to scaling it.
Open
amazon.com →
📖 Book
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Paid
Beginner
Why we picked it
The origin text for the modern MVP and validated-learning vocabulary every founder now uses. Read it for the mental model that a startup is a series of experiments, not a single bet.
From
theleanstartup.com
by Eric Ries
~330 pages
- Progress = validated learning, not features shipped.
- Run the Build-Measure-Learn loop as fast as you can.
- An MVP is a learning tool, not a cheap product.
Open
theleanstartup.com →
✍️ Essay
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Free
Intermediate
Why we picked it
Amy Hoy and Alex Hillman built the Sales Safari methodology, and a business, around finding what an audience already complains about paying to fix, then selling before building. This piece, written by Hillman, updates that research method for modern community platforms, which is a useful complement to one-on-one interviews when you want pattern evidence across many potential customers at once.
From
Stacking the Bricks
by Alex Hillman
12 min read
- Look for what people are already frustrated enough about to have spent money trying to fix.
- Research an audience's own words in public forums before you ever pitch them anything.
- Pre-selling forces you to describe a specific, paid outcome before you have built the thing that delivers it.
Open
shorts.stackingthebricks.com →
Why we picked it
The permission slip to recruit users by hand, do things manually, and deliver 'insanely great' experiences to your first few customers. The cheapest, most honest way to validate demand is to go get it one person at a time.
From
paulgraham.com
by Paul Graham
~15 min read
- Recruit your first users manually, don't wait for them to come.
- A tiny group of users who love you beats a big group who like you.
- Manual, unscalable effort early is a feature, not a failure.
Open
paulgraham.com →
Why we picked it
A short, practical field guide to customer discovery: who to talk to, how to find them, and how many. Pairs perfectly with The Mom Test, Fitzpatrick teaches the questions, Constable teaches the logistics.
From
talkingtohumans.com
by Giff Constable
~80 pages (free PDF available)
- Decide who you need to learn from before you start.
- Recruiting interviewees is a skill, scripts and channels included.
- Get out of the building; patterns emerge faster than you expect.
Open
talkingtohumans.com →
