📖 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
A short, free primer straight from the person who coined the term, useful when someone on your team thinks an MVP just means a cheap version of the full product. It clarifies that an MVP can be as small as a landing page or a manual service as long as it produces real learning. Read it to reset the definition before you scope anything.
From
Lean Startup Co.
by Eric Ries
~8 min read
- An MVP is about learning, not about a smaller product
- It can be a page, a video, or a manual service
- Customers must take a real action for the test to count
Open
leanstartup.co →
✍️ Essay
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Free
Intermediate
Why we picked it
The essay that put 'product-market fit' into the startup vocabulary. Read it for the gut-level description of what PMF feels like when it's happening vs when it isn't, the intuition behind the metrics.
From
pmarchive.com
by Marc Andreessen
~15 min read
- Market matters most; a great market pulls product out of a startup.
- You can feel PMF, customers buy as fast as you can ship.
- Before PMF, do whatever it takes to get there; nothing else counts.
Open
pmarchive.com →
📄 Article
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Free
Intermediate
Why we picked it
The customer-development originator's clearest statement on scoping the minimum feature set to reach your earliest believers. The sharpest antidote to feature creep in v1.
From
steveblank.com
by Steve Blank
~8 min read
- Ship the smallest set your earlyvangelists will actually pay for.
- Extra features before fit are engineering waste.
- The MVP is a Customer Development tactic, get it into users' hands fast.
Open
steveblank.com →
📄 Article
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Free
Beginner
Why we picked it
The two ways to fake a product while you test real demand. Do the work by hand in the open (concierge), or hide the manual work behind a front so users think it is automated (Wizard of Oz, the way Zappos started). Clear examples of when each one fits.
From
LogRocket
~12 min read
- Concierge is transparent, Wizard of Oz is hidden.
- Both let you sell before you build.
- Match the method to what you are unsure about.
Open
blog.logrocket.com →
📄 Article
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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 →
Why we picked it
The book that gave the world 'MVP', 'build-measure-learn', and 'validated learning'. It reframes a startup as a series of experiments, not a bet, the mental model everything else in this category builds on.
From
theleanstartup.com
by Eric Ries
~330 pages
- Progress = validated learning, not features shipped.
- Build the minimum that produces a real learning loop.
- Decide pivot-or-persevere on evidence, on a schedule.
Open
theleanstartup.com →
Why we picked it
A step by step process for taking an idea to something people want without building the wrong product first. Maurya's mantra, love the problem not your solution, keeps your first MVP focused on testing risk rather than shipping features. Practical if you want interview scripts and a repeatable order of experiments instead of theory.
From
Ash Maurya (O'Reilly)
by Ash Maurya
~336 pages
- Rank your assumptions and test the riskiest one first
- Love the problem, not your solution
- A one page model beats a long plan for an early idea
Open
oreilly.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 →