📖 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 →
📖 Book
✓ Link checked
Freemium
Intermediate
Why we picked it
The authoritative handbook on founder-led sales, written for technical/first-time sellers building B2B SaaS. Readable free online via membership, and covers the whole motion end to end.
From
foundingsales.com
by Peter Kazanjy
book (~400 pages)
- Do ~50 demos and hit a ~20%+ win rate before hiring your first sales rep.
- Discovery before demo, understand the problem before you pitch.
- Dedicated chapters on prospect outreach and demo appointment setting.
- Turn founder selling into a documented, repeatable, transferable process.
Open
foundingsales.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
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
Free
Intermediate
Why we picked it
When your first ten will come from cold outreach, this guide gives you the full mechanics: building a target list, qualifying, writing the email, and running follow-ups without being annoying. It is the operational counterpart to the Lenny and YC pieces, showing the actual day-to-day of prospecting. Work through it as a checklist for your outbound.
From
Close
by Steli Efti
Multi-chapter guide
- Build a tight, specific list of the right people before you write anything.
- Qualify hard so you spend time on prospects who can actually buy.
- Structured follow-up, not a single email, is where most deals are won.
Open
close.com →
📄 Article
✓ Link checked
Free
Beginner
Why we picked it
The canonical fake-door test, told by the founder who ran it. Buffer started as a two-page site: one page pitched the tool, a pricing button led to an email capture, and every signup got a personal note. Real demand, real conversations, a paying customer in weeks, and not a line of product code.
From
Buffer
by Joel Gascoigne
~10 min read
- Test willingness to pay with a pricing page before you build.
- Email every signup by hand and start a conversation.
- A landing page measures behaviour, not opinions.
Open
buffer.com →
📄 Article
✓ Link checked
Free
Intermediate
Why we picked it
This is the best method for the exact job of learning an industry's language when you cannot yet get face time with people in it. Hoy shows how to lurk in the forums, reviews, and comment threads where your audience already talks, and mine their real words, pains, and workarounds. Do this and you will start speaking the vocabulary before anyone can tell you are new.
From
Stacking the Bricks (Amy Hoy)
by Amy Hoy
video walkthrough
- Find the watering holes where your audience already complains in public
- Collect their exact words, pains, and existing workarounds
- Observation at scale can precede one-on-one interviews
Open
stackingthebricks.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
This is the rare cold email piece written by someone who has actually sent thousands of them (Steli Efti built Close, a sales CRM, on the back of founder-led outreach). It gives you 15 real templates with the subject line, the body, and the reasoning for when to use each, so you can see the moving parts instead of copying blind. It is honest that a template is a starting point, not a magic phrase: the personalization you add is what earns the reply.
From
Close
by Steli Efti
- Keep it short and answer three questions fast: who are you, what do you want, and why this person specifically.
- End with one clear, low-friction call to action, and plan your follow-ups before you send the first email.
- Templates save time but only work once you layer in real, specific personalization; a copy-paste blast reads like one.
Open
close.com →
📖 Book
✓ Link checked
Paid
Intermediate
Why we picked it
Written specifically for solo and small-team founders without a marketing budget or audience, this book argues for validating a niche and starting to build an email list before or alongside your build, so you're never launching into total silence again.
From
Amazon
by Rob Walling
- Start collecting emails from interested people before your product is finished.
- Pick a niche small enough that a lone founder can become known within it.
- A few hundred engaged email subscribers beat a large, indifferent following.
Open
amazon.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 →
