Explore · The library

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. Jason Levin grew a product to $100K ARR on Bubble with no engineers, then raised $3M and re-platformed to an API. It is a clean... Lenny's Newsletter Article · ~20 min read · Starting Up From a $6.90 newsletter to $3M API: How a non-coder built Memelord Jason Levin In 5 answers
  2. This is the other half of your answer: what to do once the thing works. It walks a non-technical founder through when and how... TechCrunch Article · Starting Up How to hire your first engineer: A guide for nontechnical founders TechCrunch In 5 answers
  3. The CTO of India's largest broker explains how a tiny team scales huge load by optimizing the application before touching... Zerodha Tech Blog Article · 15 min read · Starting Up Scaling with common sense Kailash Nadh In 5 answers
  4. The foundational essay behind YC's whole worldview. Graham argues a startup needs good people, something users want, and low... paulgraham.com Essay · Starting Up How to Start a Startup Paul Graham In 5 answers
  5. Finding a great engineer is only half the battle when everyone is competing for them, and this piece is about the other half:... Y Combinator Startup Library Article · Medium read · Starting Up Convincing engineers to join your team Y Combinator In 5 answers
  6. Linear is a small, largely distributed team that ships a famously polished product, and this breaks down how they organize... Lenny's Newsletter Article · ~20 min read · Starting Up How Linear builds product Lenny Rachitsky In 5 answers
  7. Users judge attractive products as more usable, which is why polish matters and also why it can hide real problems. As a... Nielsen Norman Group Article · 8 min read · Starting Up The Aesthetic-Usability Effect Kate Moran In 5 answers
  8. Before you optimize a byte, you need to know who you are building for, and Pai's India1, India2, India3 framing is the clearest... SajithPai.com Essay · Long read · Starting Up India2, English Tax and Building for the Next Billion Users Sajith Pai In 5 answers
  9. This is the practical how-to for actually running the weekly cadence, covering the part most founders get stuck on: recruiting... Product Talk Article · Starting Up Customer Interviews: How to Recruit, What to Ask, and How to Synthesize What You Learn Teresa Torres In 5 answers
  10. The full book behind the essay, for when you want the system and not just the idea. It gives you the language of outcomes over... Melissa Perri (O'Reilly) Book · 200 pages · Starting Up Escaping the Build Trap Melissa Perri In 5 answers
  11. A well organized menu of twelve concrete approaches drawn from real founders, useful when you want structured prompts without... First Round Review (review.firstround.com) Article · ~20 min read · Starting Up 12 Frameworks for Finding Startup Ideas First Round Review In 5 answers
  12. Essential reading for anyone sizing an Indian market. Pai shows that India's billion people are not one payable market: roughly... Sajith Pai Essay · Starting Up India1, Avocado Startups, and Finding Product Market Fit Sajith Pai In 5 answers
  13. A side-by-side of both methods that makes clear why you use bottom-up as your primary number and top-down only as a rough... Waveup Article · 14 min read · Starting Up Top-Down vs Bottom-Up Market Size Calculation Waveup In 5 answers
  14. Andreessen's 2011 essay is a masterclass in spotting a durable secular shift early and betting on it before it is obvious to... Andreessen Horowitz Essay · Starting Up Why Software Is Eating the World Marc Andreessen In 5 answers
  15. A short, sharp counterpoint to the instinct to try to reach everyone before you launch: Godin argues you should aim for the... Seth's Blog Essay · 3 min read · Starting Up The smallest viable audience Seth Godin In 5 answers
  16. A tight five-part framework (short, personalized, credible, valuable, clear ask) with real examples of emails that led to... The Curiosity Chronicle Essay · 10 min read · Starting Up The Cold Email Guide Sahil Bloom In 5 answers
  17. Steli Efti built his sales career on the belief that unanswered outreach is a maybe, and a maybe is what kills deals. This... Close Article · Starting Up The Winning Cold Email Follow-up Plan for Sales Teams Steli Efti In 5 answers
  18. A plain explainer of SEBI's revised angel fund rules from September 2025: who counts as an accredited investor, how many a fund... Treelife Article · 15 min read · Starting Up Angel Fund Registration in India: The Revised SEBI Framework Treelife In 5 answers
  19. Google's own guidance on what decides where a business shows in local results: a complete, verified profile, accurate hours and... support.google.com Article · 5 min · Starting Up Tips to improve your local ranking on Google Google In 5 answers
  20. The Ministry of Corporate Affairs' own FAQ on SPICe+, the single web form that incorporates a company. It lists the 11 services... mca.gov.in Article · Starting Up SPICe+ and linked filings: official FAQs Ministry of Corporate Affairs In 5 answers
  21. The rare guide written specifically for D2C founders rather than generic startups, it walks through incorporation, GST,... IncorpX Article · D2C D2C Brand Registration & Compliance India 2026 IncorpX In 5 answers
  22. The deepest independent usability research base on why carts get abandoned - the '70% abandonment' figure and specific checkout... baymard.com Article · D2C E-Commerce Cart & Checkout Usability Research Baymard Institute In 5 answers
  23. Lays out WhatsApp as a full commerce channel, catalogue, payments, cart recovery, post-purchase, not just a broadcast tool,... productgrowth.in Article · D2C WhatsApp Commerce for D2C Brands: The Complete India Playbook Product Growth Intelligence In 5 answers
  24. The IEC is the one document you cannot export without, and this explains what it is, who needs it, and the DGFT application... sell.amazon.in Article · D2C Importer-Exporter Code (IEC): Meaning, Benefits, How to Apply Amazon India In 5 answers

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