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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.

  1. The single clearest explanation of the two documents Indian founders confuse: the founders' agreement (equity, vesting, roles,... EquityList Article · 15 min read · Starting Up Founders' Agreement: Definition, Key Clauses, and Template for Indian Startups EquityList In 8 answers
  2. A hands-on companion to The Mom Test with more structure on who to talk to and how to run the process. Alvarez is strong on... Cindy Alvarez Book · ~240 pages · Starting Up Lean Customer Development Cindy Alvarez In 8 answers
  3. A founder-friendly crash course on planning and running discovery interviews, with tactics from researchers at Zoom, Zapier,... First Round Review Article · 20 min read · Starting Up A UX Research Crash Course for Founders Jane Davis In 8 answers
  4. Consumer PMF advice does not map cleanly onto B2B, where deals are few, considered, and slow, which describes many Indian... Lenny's Newsletter Article · ~3,000 words · Starting Up A guide for finding product-market fit in B2B Lenny Rachitsky In 8 answers
  5. Hall's book gives you the research discipline behind good interviewing: how to avoid leading a witness, how to write a... A Book Apart / Erika Hall Book · ~120 pages · Starting Up Just Enough Research Erika Hall In 8 answers
  6. This is where the SDR and AE split came from, and the summary gives you the whole model without the book. The rule that no AE... Predictable Revenue Article · ~15 min read · GTM 15-Minute Summary of Predictable Revenue Aaron Ross In 8 answers
  7. Built from a masterclass with Mohit Garg, former CRO at MindTickle, and written for cross-border companies selling from India,... SeedToScale by Accel Article · long read · GTM SaaS Playbook: Sales Rachit Parekh In 8 answers
  8. The benchmark dataset for marketplace and co-sell: multi cloud sellers at 29% of revenue through marketplaces versus 3% for... Tackle Report · 25 min read · GTM The 2025 State of Cloud GTM Report Tackle In 8 answers
  9. The Gainsight CEO on why CS should own an NDR number rather than just a churn number, including the idea of giving every CSM... Gainsight Article · 8 min read · GTM 8 Things I Learned from Dave Kellogg About Net Dollar Retention Nick Mehta In 8 answers
  10. The clearest arithmetic anywhere on rep economics: the rule of 10 for quota against base, four months to productivity, draws... Craft Ventures Essay · 12 min read · GTM Simple Math to Set Up a Sales Team David Sacks In 8 answers
  11. How to give Gemini an ongoing task on a schedule, such as watching prices or pulling cited research into a file, which is the... support.google.com Guide · How Founders Use AI Manage your tasks & workflows in Gemini Apps Google In 8 answers
  12. David Skok's For Entrepreneurs work is the foundational, near-universally cited source on SaaS unit economics and modeling.... forentrepreneurs.com Article · long-form reference · Starting Up SaaS Metrics 2.0, Detailed Definitions David Skok In 7 answers
  13. A focused a16z piece on the single ratio that most captures a business's efficiency and drives its valuation. Great for... a16z.com Article · article · Starting Up Why Do Investors Care So Much About LTV:CAC? Andreessen Horowitz (a16z) In 7 answers
  14. The definitive book on how VC deals really work, written by two Foundry Group VCs. It demystifies the term sheet term-by-term... Wiley Book · book (~300 pages) · Starting Up Venture Deals: Be Smarter Than Your Lawyer and Venture Capitalist Brad Feld & Jason Mendelson In 7 answers
  15. CB Insights read hundreds of real startup postmortems and found that poor product-market fit (around 43 percent) is the single... CB Insights Article · ~15 min read · Starting Up The Top 12 Reasons Startups Fail CB Insights In 7 answers
  16. Seibel's whole point is that a market only counts once real customers are grabbing the product as fast as you can make it and... Michael Seibel (Y Combinator) Essay · ~4 min read · Starting Up The Real Product Market Fit Michael Seibel In 7 answers
  17. This is a working Indian seed VC (Blume backed Unacademy, Purplle, Slice) writing down what it actually looks for, slide by... Blume Ventures Article · 20 min read · Starting Up High Pitched Assessments: the exhaustive list of what makes a good pitch deck Blume Ventures In 7 answers
  18. YC's counterpoint is worth hearing precisely because it pushes back on being stingy: if this person is a real co-founder doing... Y Combinator Article · 10 min read · Starting Up How to Split Equity Among Co-Founders Y Combinator In 7 answers
  19. A free, short predecessor to The Right It for when you want the method without buying a book. It lays out cheap experiments... pretotyping.org Book · ~90 pages · Starting Up Pretotype It (free PDF) Alberto Savoia In 7 answers
  20. Getting the customer to say yes is only half the job, the other half is onboarding them yourself so they actually succeed. This... First Round Review Article · ~20 min read · Starting Up How to Build and Scale Onboarding (The Superhuman Playbook) Gaurav Vohra In 7 answers
  21. This is the book length version of the exact instinct in our short answer, that you generate real insight by living in the... Mike Maples Jr. and Peter Ziebelman (patternbreakers.com) Book · ~304 pages · Starting Up Pattern Breakers: Why Some Start-Ups Change the Future Mike Maples Jr. and Peter Ziebelman In 7 answers
  22. Dixon argues that the hobbies smart engineers pour weekends into today become mainstream work in ten years, because engineers... cdixon.org (Chris Dixon) Essay · ~4 min read · Starting Up What the Smartest People Do on the Weekend Is What Everyone Else Will Do During the Week in Ten Years Chris Dixon In 7 answers
  23. Written by a former FBI hostage negotiator, not a sales trainer, which is exactly why it works for founders who recoil at... Chris Voss Book · Starting Up Never Split the Difference: Negotiating As If Your Life Depended On It Chris Voss In 7 answers
  24. An Indian agency playbook that puts numbers on the UGC-first approach: a 70/30 prospecting-retargeting split and 10-15 UGC... Sociolabs Article · D2C How D2C Brands in India Can Achieve 3x-4x ROAS with Meta Ads Sociolabs In 7 answers

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The hubs

Starting Up Find an idea, validate it, build, and land your first customers. 1046 questions GTM Go-to-market, from breaking in to how the best teams do it. 352 questions D2C Building a direct-to-consumer brand, India-first. 482 questions Wealth Paying yourself, ESOPs, secondaries, and de-risking founder wealth. 154 questions How Founders Use AI How founders actually put AI to work, mapped topic by topic. 278 questions Glossary Plain-language definitions of the startup and VC terms you'll hit. 390 terms
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