📖 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
✓ Link checked
Freemium
Intermediate
Why we picked it
Real benchmark data from founders on what a waitlist actually converts to paid, so you can calibrate expectations against your numbers. The clearest finding is that speed matters: convert people within a month and you can hit 20 percent or more, wait three months and it falls below 10 percent. Use it to stop hoarding signups and start reaching out now.
From
Lenny's Newsletter
by Lenny Rachitsky
10 min read
- Waitlist to paid conversion commonly lands around 20 percent, not the whole list.
- Move people off the waitlist fast; delay kills conversion.
- A big waitlist number tells you little until you try to charge it.
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
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
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
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 →
📖 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
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
This is the practical companion to the mindset stuff: it walks through actually turning an interested prospect into a paying one. The core move it teaches, asking "what do we have to do for you to become a customer today?", is the exact question most founders are too shy to ask, which is why they stay stuck at "this is great." Treat it as a starting point for building a repeatable close, not a script to copy word for word.
From
close.com
by Nick Persico
- Ask for the close early and often. When the prospect lists their obstacles, they have just handed you the exact steps to close them.
- Turn each objection into a yes-or-no path: "So if we do X and Y, you become a customer?" then hold them to it.
- Most deals close between the third and fifth follow-up, so consistent follow-up, not a perfect pitch, is what converts warm interest into money.
Open
close.com →
📄 Article
✓ Link checked
Free
Beginner
Why we picked it
The cleanest distillation of the one framework that turns a customer chat into a relationship instead of a survey. The three rules (talk about their life not your idea, ask about the past not hypotheticals, and chase real commitments of time, reputation, or money) are exactly how you get an early customer to tell you what nearly stopped them from buying and who else you should talk to. Rekhi is a product leader, so the examples are operator-grade, not book-report fluff.
From
Sachin Rekhi's Blog
by Sachin Rekhi
10 min read
- Never pitch your idea in the conversation; ask how they handle the problem today and what it costs them, so praise can't lie to you.
- The strongest signal is a commitment that costs them something: a trial, an intro to a colleague, or a pre-order.
- 'Would you buy this?' teaches you nothing; 'walk me through the last time you dealt with this' surfaces the real story and the referral.
Open
sachinrekhi.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 →
