📖 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
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Freemium
Beginner
Why we picked it
Most first 100 users advice is vague. This piece is the opposite: it groups the real cold start tactics into seven concrete plays and names the exact company behind each one, from Tinder pitching sororities in person to Dropbox seeding online communities. Read it as a menu to pick from, not a checklist to run top to bottom, since almost every founder here won just one channel that fit them.
From
Lenny's Newsletter
by Lenny Rachitsky
About a 15 minute read
- The tactics sort into seven repeatable plays: go to users offline, find them online, invite friends, manufacture exclusivity, use influencers, get press, and build a community before launch.
- Most companies got their first users from a single channel that fit their product, so the job is finding your one, not doing all of them.
- Nearly all of it was unglamorous and manual: door to door, one community at a time, personal invites rather than a growth machine.
Open
lennysnewsletter.com →
📄 Article
✓ Link checked
Freemium
Intermediate
Why we picked it
The consumer counterpart to finding B2B customers, focused on manually recruiting your first users for a consumer product. It is full of tactics for going into communities, WhatsApp and Facebook groups, and forums where your users already spend time. Practical fuel for reaching a market that the metros are ignoring.
From
Lenny's Newsletter
by Lenny Rachitsky
- Go to the online places your users already gather
- Recruit early adopters by hand before you automate anything
- Small niche communities can seed your first real users
Open
lennysnewsletter.com →
📄 Article
✓ Link checked
Free
Intermediate
Why we picked it
Getting the customer to say yes is only half the job, the other half is onboarding them yourself so they actually succeed. This breaks down how Superhuman ran one-to-one onboarding and what founders should copy when they have only a handful of users. It gives your first ten a reason to stay, not just sign up.
From
First Round Review
by Gaurav Vohra
~20 min read
- Onboarding is where an early customer decides to stay or churn.
- Doing it one to one at first teaches you where users get stuck.
- Only systematise onboarding after you have watched enough people do it live.
Open
review.firstround.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 →
📄 Article
✓ Link checked
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 →
📄 Article
✓ Link checked
Free
Beginner
Why we picked it
Altman's condensed operating manual for founders, including sharp guidance on focus, spending your time on what only you can do, and prioritization. Primary source, endlessly re-read.
From
playbook.samaltman.com
by Sam Altman
long
- A founder's job narrows to a few things: set the vision, hire well, and don't run out of money
- Focus and intensity beat breadth, do a few things extremely well
- Momentum and growth are the founder's core responsibilities
- Protect your time for the highest-leverage work only you can do
Open
playbook.samaltman.com →
📖 Book
✓ Link checked
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 →
📄 Article
✓ Link checked
Free
Beginner
Why we picked it
The full Airbnb origin story, including the moment the founders flew to New York to photograph listings themselves because bad photos were killing bookings. It shows how a completely unscalable, unglamorous fix (one that doubled revenue) taught them something no dashboard would have. Read it when you need proof that the manual, embarrassing work is often the highest-leverage thing you can do.
From
Product Habits
by Hiten Shah
20 min read
- The founders manually photographed listings, and bookings doubled.
- The unscalable fix revealed the real problem, which was trust and quality.
- They only built a photographer program after the manual version proved it worked.
Open
producthabits.com →
📄 Article
✓ Link checked
Free
Intermediate
Why we picked it
A short explainer of the Stripe tactic Paul Graham named after the Collison brothers: instead of emailing a signup link, they said give me your laptop and set the product up on the spot. It turns an abstract idea into one concrete move you can copy this week. It also captures what you gain by being in the room, the hesitations and questions that reveal what to fix.
From
This is KP
by KP
8 min read
- Do the setup for your first users in person rather than sending instructions.
- Watching someone use your product live surfaces problems no funnel reveals.
- Removing all onboarding friction by hand is a small-company superpower.
Open
thisiskp.com →
✍️ Essay
✓ Link checked
Free
Intermediate
Why we picked it
The free, original essay that defined the MVP before the book existed, written plainly by the person who coined the term. It clears up the most common mistake founders make, which is thinking an MVP has to be a working product when a landing page or a video often teaches you more, faster. Useful as a quick primer you can send someone in one link.
From
Startup Lessons Learned (Eric Ries)
by Eric Ries
~15 min read
- An MVP is the smallest thing that produces validated learning, not the smallest product
- A page or a video can be a legitimate MVP if it tests real demand
- Aim for maximum learning per unit of effort, not feature completeness
Open
startuplessonslearned.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 →