📖 Book
✓ Link checked
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
✓ Link checked
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 →
✍️ Essay
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Free
Beginner
Why we picked it
The definitive essay on where good ideas come from: notice problems you personally have, don't force it. Use it as the lens for judging whether your idea is a real problem or a solution in search of one.
From
paulgraham.com
by Paul Graham
~20 min read
- Live in the future and build what's missing.
- The best ideas look like bad ideas at first (schleps and hard-to-explain).
- Start with problems you have, in a domain you actually know.
Open
paulgraham.com →
📄 Article
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Free
Intermediate
Why we picked it
The single most useful mental model for whether you actually need to raise. Graham's 'default alive vs default dead' framing forces the financial clarity most founders avoid until it's too late.
From
paulgraham.com
by Paul Graham
10 min read
- At constant expenses and current growth, will you reach profitability before the money runs out? Answer that first
- Founders systematically ask this question too late, often after over-hiring
- Being default alive gives you leverage; being default dead means you're fundraising from weakness
Open
paulgraham.com →
✍️ Essay
✓ Link checked
Free
Beginner
Why we picked it
This is the sharpest short answer to the real fear behind the question: how do I not go broke funding this. Graham reframes the goal away from a big pile of savings and toward covering just your own living costs so you stop needing outside money to survive. Read it as a starting point for setting your own personal floor, not as a rule about exact rupee amounts.
From
paulgraham.com
by Paul Graham
~1,200 words, about a 6 minute read
- The milestone that actually protects you is when the business covers your personal living expenses, not when you have raised a big round.
- Once you are not dependent on the next cheque, you negotiate from strength: investors who know you are desperate will price that in.
- Keeping your own burn low (yours, not just the company's) is what buys you the room to say no.
Open
paulgraham.com →
📄 Article
✓ Link checked
Free
Intermediate
Why we picked it
Ramanujam argues that putting willingness to pay at the very centre of product design, before you build, is what separates products people buy from products people merely like. He shows how to have the money conversation early instead of bolting a price on at the end. This is the discipline behind baking a price into your test from day one.
From
First Round Review
by Madhavan Ramanujam
- Test willingness to pay before you build, not after you launch
- Most companies avoid the price conversation until it is too late
- A product designed around what people will pay for is a different product
Open
review.firstround.com →
📄 Article
✓ Link checked
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
✓ Link checked
Free
Intermediate
Why we picked it
Turns the vague feeling of product-market fit into a number you can move. Ask users how they would feel if they could no longer use the product, then track the share who say 'very disappointed'. Under 40 percent means keep working. A test you can run on an idea long before you scale it.
From
First Round Review
by Rahul Vohra
~20 min read
- The 40 percent 'very disappointed' benchmark for product-market fit.
- Segment to your high-expectation customers and build for them.
- Make the fit score a metric you improve quarter by quarter.
Open
review.firstround.com →
📖 Book
✓ Link checked
Free
Beginner
Why we picked it
A free, short predecessor to The Right It for when you want the method without buying a book. It lays out cheap experiments (fake buttons, manual concierge, pre-orders) that reveal whether people will act, not just nod. Worth reading before you spend a single rupee on building.
From
pretotyping.org
by Alberto Savoia
~90 pages
- Test the core experience with the smallest possible time and money.
- Watch what people do when asked to commit, not what they say.
- A single well-run experiment can kill or confirm an idea in a day.
Open
pretotyping.org →
📄 Article
✓ Link checked
India
Free
Intermediate
Why we picked it
Before you build for a home market outside the big startup hubs, you need the real economics, and this is the essay that maps them most honestly. Sajith Pai separates the roughly 100 million affluent, English-first consumers from the much larger vernacular India coming online, and shows why the second group needs different distribution, different pricing, and often a full-stack model. It is a starting point for pricing a Bharat idea without kidding yourself about willingness to pay.
From
Sajith Pai (Blume Ventures)
by Sajith Pai
~20 min read
- The affluent English-first India and the larger emerging vernacular India rarely share one product or business model, so build for one deliberately.
- Lower incomes push monetization away from ads and subscriptions toward transaction-based and full-stack models where you control the value chain.
- Search-based ecommerce underserves the emerging segment, social and content commerce reduce the real friction of reaching it.
Open
sajithpai.medium.com →
📄 Article
✓ Link checked
India
Free
Beginner
Why we picked it
Kamath spells out a hard Indian truth: services that Americans pay a premium for, Indians expect for free, so the same feature earns money there and nothing here. It is a concrete reminder that willingness to pay is cultural and infrastructural, not just about product quality. Useful context for why your Indian free users resist paying.
From
Business Today
by Nithin Kamath (via Business Today)
- The same feature can be paid abroad and expected free in India
- Indian users often expect zero-cost as the default, not a discount
- Where you cannot charge the consumer, find the party who will pay
Open
businesstoday.in →
✍️ Essay
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Free
Intermediate
Why we picked it
Pike weighs pre-selling honestly, including when a signed commitment truly validates demand and when it does not fit your product. It helps you decide whether to get money or a firm commitment before building, which is the strongest possible signal past free love. Balanced rather than dogmatic, so you apply it with judgement.
From
Allen Pike
by Allen Pike
- A paid commitment before building is the strongest demand signal there is
- Pre-selling suits some products more than others, know which you are
- Nothing counts until money or a firm commitment changes hands
Open
allenpike.com →
📄 Article
✓ Link checked
Free
Intermediate
Why we picked it
A practical roundup of demand-testing models, including the 'dry wallet' or pre-sales test where you ask for payment before the product is ready. It lays the methods out side by side so you can pick the one that fits your stage and risk. Clear, free, and it names the trade-offs.
From
RevenueCat Blog
by RevenueCat
~15 min read
- A pre-sales (dry wallet) test asks for money and is the strongest signal.
- Different validation methods fit different stages and levels of risk.
- A signup shows curiosity; a payment attempt shows willingness to pay.
Open
revenuecat.com →
📄 Article
✓ Link checked
Free
Beginner
Why we picked it
A short, tactical list of ways to test willingness to pay, from small paid pilots to letters of intent to pricing-page click tests. It is the fastest way to pick a concrete experiment when you know free interest is not enough. Practical and skimmable when you just need to act.
From
The Glimpse
- Six concrete tests you can run to check real willingness to pay
- A small paid pilot beats any amount of enthusiastic free feedback
- Choose one experiment and get a real payment signal this week
Open
theglimpse.co →
