📖 Book
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Paid
Beginner
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 →
📖 Book
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Paid
Intermediate
The standard modern playbook for keeping discovery continuous so roadmap decisions stay grounded in real customer input, not one-off research. Exactly what founders need to stay close to users while shipping.
From
Product Talk
by Teresa Torres
~240 pages
- Start from a clear desired outcome.
- Interview customers weekly to surface opportunities.
- Use an opportunity solution tree to visualize and align your decisions.
Open
producttalk.org →
📖 Book
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Paid
Intermediate
Most founders treat customer research as a one-time pre-launch exercise, then go quiet once the product ships. Torres makes the opposite case: the core habit is talking to a handful of customers every single week, run by the same people building the product, so learning never stops. This is the clearest, most practical playbook for turning discovery into a standing rhythm instead of a project.
From
Amazon
by Teresa Torres
~200 pages
- The keystone habit is weekly touchpoints with 5 to 7 customers, done by the team building the product, not outsourced to a research department
- Use story based interviews (ask about a specific recent experience) instead of asking people what they want or would do in the abstract
- Tie every interview back to a desired outcome using opportunity mapping, so research drives decisions rather than piling up as notes
Open
amazon.com →
📄 Article
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Free
Beginner
This is the practical how-to for actually running the weekly cadence, covering the part most founders get stuck on: recruiting people and making sense of what they said. Torres favors story based interviews where you ask about a specific recent instance rather than generalities. Use it as your operating manual for keeping a steady interview stream alive.
From
Product Talk
by Teresa Torres
- Ask about a specific recent story, not what people 'usually' do
- Automate recruiting so scheduling never becomes the reason you stop
- Synthesize every few interviews so learning does not pile up unused
Open
producttalk.org →
✍️ Essay
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Free
Beginner
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 →
📄 Article
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Free
Intermediate
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
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Paid
Intermediate
Judging whether people will actually change their behavior comes down to how well you can hear intensity in what they say, and this is the most practical book on doing exactly that. Hansen, a bootstrapped SaaS founder, walks through the specific questions and listening moves that get past polite answers to the real emotional weight behind a stated problem. It is the how-to that makes the vitamin versus painkiller judgment something you can actually do in a live conversation instead of guessing.
From
deployempathy.com
by Michele Hansen
Full book, roughly 250 pages
- Ask about the last time someone hit the problem and what they did about it; workarounds and effort reveal true intensity better than a rating of how much it bothers them.
- People soften and rationalize their pain, so listen for emotion, hesitation, and the stuff they already spend money or time on to cope.
- Behavior in the past is the honest signal, if they never built a workaround or paid to escape it, the problem is likely a nice-to-have.
Open
deployempathy.com →
📖 Book
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Paid
Intermediate
A hands-on companion to The Mom Test with more structure on who to talk to and how to run the process. Alvarez is strong on separating what customers say they want from what they actually need and will pay for. Practical scripts and a repeatable five-step loop.
From
Cindy Alvarez
by Cindy Alvarez
~240 pages
- Find customers and their problems before building.
- Distinguish wants from needs.
- Build continuous learning into how you work.
Open
cindyalvarez.com →
📄 Article
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Free
Intermediate
A transcript of a real switch interview so you can hear what a great customer conversation actually sounds like. Reading it shows how a skilled interviewer follows the timeline of a purchase and keeps digging without leading. Much more useful than abstract advice when you are learning to run these yourself.
From
Jobs to be Done Radio
- See a real interview unfold instead of reading rules about one
- Notice how the interviewer follows the timeline of the decision
- Small 'why did you do that' probes uncover the real motivation
Open
jobstobedone.org →
📄 Article
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Freemium
Intermediate
Testing with the wrong five people teaches you nothing, so this piece helps you decide who your five should actually be. Margolis lays out a one-day approach to find the specific customer most likely to adopt now. It sharpens the recruiting side of your usability test so the feedback is worth acting on.
From
Lenny's Newsletter
by Michael Margolis
- Narrow to the subset of users most likely to adopt today.
- A tight bullseye makes five sessions far more decisive.
- You can find and interview them in a single focused day.
Open
lennysnewsletter.com →
📖 Book
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Paid
Advanced
The foundational text of customer development, 'get out of the building' started here and became the backbone of the Lean Startup. Steve Blank's own site is the primary source.
From
steveblank.com
by Steve Blank
~370 pages
- The biggest risk isn't building wrong tech, it's building something nobody wants
- Customer discovery: test your hypotheses with real customers before scaling
- Separate customer development from product development as parallel processes
- Search for a repeatable business model before you try to execute one
Open
steveblank.com →
