Explore
Every resource founders actually use, in one library.
The essays, videos, podcasts, books and tools behind every answer across eChai's hubs, from starting up to go-to-market, D2C, founder money and AI, each with a note on why it is here.
What founders use most, ranked by how many answers lean on it.
- This names biases beyond the obvious one: task-selection bias (users assume whatever you ask them to find must exist), social... MeasuringU Article · Starting Up 9 Biases in Usability Testing Jeff Sauro
- Useful once you've run a few in-person sessions and want to test with more people than you can personally sit with. It's honest... Maze Article · Starting Up Moderated vs. Unmoderated Usability Testing: Which One is Right for You? Maze
- Written for solo and early founders rather than VC backed teams, this is blunt about why family and friends are usually the... Indie Hackers Article · Starting Up How To Validate a Business Idea Indie Hackers
- Kahl argues that half of good customer discovery is ignoring the wrong people, and he is explicit that supportive friends and... Arvid Kahl, The Bootstrapped Founder Essay · Starting Up Problem Validation: Making Sure You're Talking to the Right People Arvid Kahl
- This thread is a candid, unfiltered discussion of a question every founder eventually asks out loud: how do you actually get a... Hacker News Thread · Starting Up Ask HN: How to Actually "Talk to Your Customers"? Hacker News
- Nick Swinmurn tested whether people would actually buy shoes online by photographing shoes he did not own and buying them at... Alex Ponomarev Article · 8 min read · Starting Up How Zappos Built a Product By Faking It Alex Ponomarev
- The book's central case study of an entrepreneur with six beta commitments and zero dollars spent on development is a direct... Nathan Furr and Paul Ahlstrom Book · ~230 pages · Starting Up Nail It Then Scale It Nathan Furr, Paul Ahlstrom
- Young's method pushes you past what people say they do and toward the reasoning underneath it, the guiding thoughts and... Rosenfeld Media Book · Starting Up Mental Models: Aligning Design Strategy with Human Behavior Indi Young
- This article names the specific ways a survey misleads you: people rush through it, answer the way that feels acceptable rather... Harvard Business Review Article · Starting Up Customer Surveys Are No Substitute for Actually Talking to Customers Graham Kenny
- Cohen has run this exact process since before he sold his first company, and he is unusually candid about the mechanics: write... A Smart Bear Essay · Starting Up The Iterative-Hypothesis Customer Development Method Jason Cohen
- A checklist you can run your actual call script against before you place the calls. It catches the specific phrasing habits,... Nielsen Norman Group Article · ~8 min read · Starting Up 6 Mistakes When Crafting Interview Questions Maria Rosala
- Cohen goes straight at the founder self-deception in the question: a room full of enthusiastic yeses is not validation unless... A Smart Bear (Jason Cohen) Essay · ~15 min read · Starting Up Yes, but who said they would actually buy the damn thing? Jason Cohen
- This essay is the clearest explanation of why stated preference and revealed preference diverge, with a concrete example of... UX Tigers Essay · ~10 min read · Starting Up Watch What Users Do, Don't Listen to What They Say Jakob Nielsen
- Meyer's framework classifies India as a high-context culture, where meaning is layered and read between the lines rather than... Erin Meyer Book · ~280 pages · Starting Up The Culture Map: Breaking Through the Invisible Boundaries of Global Business Erin Meyer
- Affinity diagramming is the literal, hands on version of sorting your transcripts by who the person is and how badly they hurt:... Nielsen Norman Group Article · Starting Up Affinity Diagramming: Collaboratively Sort UX Findings and Design Ideas Rachel Krause and Kara Pernice
- This is the original milkshake essay: researchers sat in a parking lot and watched who bought milkshakes and when, instead of... Harvard Business Review Essay · ~20 min read · Starting Up Marketing Malpractice: The Cause and the Cure Clayton Christensen, Scott Cook, Taddy Hall
- Drew Houston did not build Dropbox before testing demand, he filmed a video showing how it would work and posted it to Hacker... Shortform Article · ~10 min read · Starting Up The Original Dropbox MVP Explainer Video Shortform
- Before building any shoe inventory or logistics, Nick Swinmurn photographed shoes from local stores, posted them online, and... What Is MVP Article · ~10 min read · Starting Up Zappos MVP Case Study: How a Wizard of Oz Test Built a Billion Dollar Shoe Empire What Is MVP
- A practical walkthrough of building only the button or menu item for a feature that does not exist yet, then measuring who... Amplitude Article · ~10 min read · Starting Up What Is Fake Door Testing: Methods and Best Practices Amplitude
- This is a reference document more than a read: thirty concrete before and after examples of leading questions rewritten into... CXL Article · 15 minute read · Starting Up Leading Questions: Definition, Types and 30 Examples CXL
- This walks through Jobs to Be Done interviewing, which is built entirely around reconstructing a real past decision rather than... CXL Article · 18 minute read · Starting Up Customer Interviews: How to Use the Jobs-to-Be-Done Framework CXL
- This is the academic name and definition for exactly the failure mode in the question: people systematically overstate what... Catalog of Bias Article · 3 minute read · Starting Up Hypothetical bias Catalog of Bias
- A short, practical rewrite guide showing three specific question types to swap in for what do you want, each anchored to... Medium Essay · 5 minute read · Starting Up Never Ask What They Want: 3 Better Questions to Ask in User Interviews Chuck Liu
- Garbugli, a three-time B2B founder, lays out the actual questions to ask about business drivers, pain intensity, and who owns... Lean Startup Digest (Medium) Essay · 10 min read · Starting Up B2B Customer Discovery Interview Questions: A Master List Etienne Garbugli
The hubs
Starting Up
Find an idea, validate it, build, and land your first customers.
GTM
Go-to-market, from breaking in to how the best teams do it.
D2C
Building a direct-to-consumer brand, India-first.
Wealth
Paying yourself, ESOPs, secondaries, and de-risking founder wealth.
How Founders Use AI
How founders actually put AI to work, mapped topic by topic.
Glossary
Plain-language definitions of the startup and VC terms you'll hit.
eChai Partner Brands
The partnership →