📖 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
Intermediate
Why we picked it
A data-backed teardown of how companies like Figma, Gusto, and Vanta actually sourced their earliest customers. Replaces guesswork with real patterns.
From
Lenny's Newsletter
by Lenny Rachitsky
~15 min read
- Only three sourcing strategies power nearly all very-early B2B growth.
- Tap your personal network first (Gusto's first 10 were friends/YC batchmates).
- Reach influential users via direct outreach (Figma cold-emailed top designers).
- Start with the highest-trust channels and work outward.
Open
lennysnewsletter.com →
📄 Article
✓ Link checked
Freemium
Intermediate
Why we picked it
A tactical follow-on covering the channels and motions top B2B startups scale after the first ten. Grounds distribution strategy in real company examples.
From
Lenny's Newsletter
by Lenny Rachitsky
~15 min read
- Content/SEO is a surprisingly dominant B2B channel (Vanta, Amplitude, Figma, HubSpot).
- The core B2B channels: self-serve inbound, sales-assist inbound, outbound, content, paid, partnerships.
- Pick and systematize the one channel that compounds for you.
- Distribution strategy should follow evidence, not fashion.
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 →
✍️ Essay
✓ Link checked
Free
Beginner
Why we picked it
This is the canonical argument that you do not need a mass market to build something real, you need a small number of people who deeply want what you make. It is the cleanest way to see that a niche is not the same as being too small, because 1,000 people who buy everything you make is a business, while 100,000 people who half-care is not. Read it as a starting point for reframing what 'big enough' actually means.
From
The Technium (kk.org)
by Kevin Kelly
~15 min read
- A viable audience can be tiny if the fans are true: roughly 1,000 people spending about 100 dollars a year is a 100,000 dollar living.
- Depth of relationship beats raw headcount, so the question is not how many people know you but how many will actually pay.
- The math only works when you own the direct relationship, without gatekeepers taking most of each sale.
Open
kk.org →
📄 Article
✓ Link checked
Free
Intermediate
Why we picked it
Validation in B2B bleeds straight into early sales, and this answers the real questions founders hit when they start selling to first buyers. It covers who to target, how to run those first deals founder-led, and when a pilot is enough proof to keep going. Practical grounding for the messy stretch between 'a buyer said yes on a call' and 'a buyer signed.'
From
First Round Review
by Emery Rosansky (First Round Review)
18 min read
- Early B2B motion should be sales-led while you still figure out your ideal buyer
- Founders must close the first customers themselves before hiring sales
- Define your ICP by talking to buyers, not by guessing on a whiteboard
Open
review.firstround.com →
📄 Article
✓ Link checked
Free
Beginner
Why we picked it
A blunt, practical guide from Demand Curve's founder on which paid and organic channels fit which business, and why most startups can't profitably buy ads early on.
From
julian.com
by Julian Shapiro
Long-form guide
- Most companies cannot profitably acquire on Meta/Google without high margins or strong referrals.
- Match the channel to your product's format, targeting, audience, and device.
- Great creative and a promise-keeping landing page beat obsessive targeting.
Open
julian.com →
📄 Article
✓ Link checked
Free
Intermediate
Why we picked it
A method for finding exactly where your customers already gather online, the forums, subreddits, and groups where they post their problems. Instead of guessing, you learn to trace your audience to their watering holes and read what they struggle with in their own words. This directly answers the where do I even look question.
From
Stacking the Bricks
by Alex Hillman
~12 min read
- Find the online places your audience already gathers
- Read their real complaints in their own words
- Their jargon and pains show you how to reach them
Open
stackingthebricks.com →
📖 Book
✓ Link checked
Paid
Beginner
Why we picked it
When you have no budget, the worst move is to pour your limited time into a channel that was never going to work for your product. Traction gives you all nineteen ways a startup can reach customers and a simple way (the Bullseye framework) to bet on two or three worth testing first. Treat it as a menu and a method, not a verdict: your free channels will come from this list, you just have to find the ones that fit you.
From
Portfolio (Penguin Random House)
by Gabriel Weinberg and Justin Mares
- Most startups die from no distribution, not a weak product, so give traction real time, not leftover time.
- There are nineteen channels (content, SEO, communities, PR, sales, and more), and most founders ignore the ones that would actually work for them.
- Bullseye: brainstorm across all channels, rank them, then run cheap tests on your top few instead of guessing.
Open
penguinrandomhouse.com →
📄 Article
✓ Link checked
Free
Beginner
Why we picked it
A compact guide to interviewing around jobs, pains, and gains without leading the witness. It keeps you from talking about your solution too early and teaches you to listen for what people genuinely struggle with. A handy reference to keep open during your first calls.
From
Strategyzer
by Strategyzer
~6 min read
- Ask about jobs, pains, and gains, not your solution
- Do not lead the person toward your idea
- Capture what you hear as you hear it
Open
strategyzer.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 →
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 →