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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. This is the most practical way to see search and interest trends climbing before they hit newsletters and everyone's timeline.... Exploding Topics Tool · Starting Up Exploding Topics Exploding Topics In 6 answers
  2. For a two-sided marketplace, the first real decision is which side to define and win first, and this essay makes the case... NFX Essay · Long read (about 25 minutes) · Starting Up 19 Tactics to Solve the Chicken-or-Egg Problem and Grow Your Marketplace James Currier In 6 answers
  3. Bob Moesta helped build the JTBD framework, and this is the most practical, founder-facing conversation on it available for... Lenny's Podcast Podcast · ~90 min · Starting Up The Ultimate Guide to JTBD (Bob Moesta, co-creator of the framework) Lenny Rachitsky (host), Bob Moesta (guest) In 6 answers
  4. The book behind the "One Metric That Matters" discipline, which is exactly the mindset you need to judge whether a ship worked... O'Reilly / Lean Series Book · 440 pages · Starting Up Lean Analytics: Use Data to Build a Better Startup Faster Alistair Croll and Benjamin Yoskovitz In 6 answers
  5. This essay names the exact trap you are in: delays in launching are usually fear of being judged and excessive perfectionism... paulgraham.com Essay · ~15 min read · Starting Up The 18 Mistakes That Kill Startups Paul Graham In 6 answers
  6. This is the canonical structure for the investor cold email, written by a YC partner who reads them from the other side. It is... Y Combinator Startup Library Essay · 5 min read · Starting Up How to Cold Email Investors Aaron Harris In 6 answers
  7. Data and tool pages tell you what WhatsApp can do; founder stories tell you what it actually took. This show interviews Indian... Spotify Podcast · Episodes about 25 minutes · Starting Up The Indian D2C Playbook Isaac John Wesley In 6 answers
  8. This is the piece nearly every other CAC explainer is quoting from, so go to the source. Skok walks through how CAC, lifetime... For Entrepreneurs Essay · Starting Up SaaS Metrics 2.0: A Guide to Measuring and Improving What Matters David Skok In 6 answers
  9. Kahl's whole argument is that you earn an audience by embedding in a community and being useful first, then building with those... embeddedentrepreneur.com Book · ~280 pages · Starting Up The Embedded Entrepreneur: How to Build an Audience-Driven Business Arvid Kahl In 6 answers
  10. Before you tune CAC and take rate, this book gives you the structural picture of why marketplace economics compound: network... W. W. Norton & Company Book · Starting Up Platform Revolution: How Networked Markets Are Transforming the Economy and How to Make Them Work for You Geoffrey G. Parker, Marshall W. Van Alstyne, Sangeet Paul Choudary In 6 answers
  11. The India-specific piece that tells you where the split actually gets signed. It separates the founders' agreement (equity,... Treelife Article · 10 min read · Starting Up Founder Vesting in a Shareholders' Agreement: What Startup Founders Must Know Treelife In 6 answers
  12. If your idea feels unglamorous or annoyingly hard, this essay explains why that can be a good sign rather than a reason to drop... paulgraham.com Essay · about 10 min read · Starting Up Schlep Blindness Paul Graham In 6 answers
  13. Steve Blank coined get out of the building, and this is a clean primer on why talking to customers is a search for facts your... Kauffman Entrepreneurs (Steve Blank) Article · 10 min read · Starting Up Getting Out of the Building: Customer Development Steve Blank In 6 answers
  14. Ramanujam argues that putting willingness to pay at the very centre of product design, before you build, is what separates... First Round Review Article · Starting Up It's Price Before Product. Period. Madhavan Ramanujam In 6 answers
  15. Shah argues that to make people switch from what they already use, you need a large jump in perceived efficiency, not a... SeedToScale (Accel India) Article · ~10 min read · Starting Up Kunal Shah's Delta 4 Theory of Successful Startups Kunal Shah In 6 answers
  16. Podcast · 50 min · Starting Up How Khadim Batti Built Whatfix Into a Global SaaS Leader (500 cold emails to first customers) Khadim Batti with Prime Venture Partners In 6 answers
  17. Des Traynor makes the case that "no" is the product strategy, and that adding a feature for one loud customer quietly costs... Intercom (Des Traynor) Article · ~8 min read · Starting Up Product Strategy Means Saying No Des Traynor In 6 answers
  18. If you do not want to buy the whole Traction book yet, this free essay gives you the core method in one sitting. It shows how... Gabriel Weinberg (Medium) Essay · 15 min read · Starting Up The Bullseye Framework for Getting Traction Gabriel Weinberg In 6 answers
  19. Project based video courses that take you from idea to a shipped app by rebuilding real products like a marketplace or a... No Code MBA (Seth Kramer) Course · Starting Up No Code MBA Seth Kramer In 6 answers
  20. Video · 35 min · Starting Up Where Do Great Startup Ideas Come From? Dalton Caldwell and Michael Seibel In 6 answers
  21. A clean definition of the three market layers with the key distinction spelled out: TAM is the whole opportunity, SAM is what... Forum Ventures Article · Starting Up Market Sizing for Startups: TAM, SAM, SOM Explained Forum Ventures In 6 answers
  22. Braun's four-sentence formula (proof you did your homework, the specific problem you think they have, a sliver of social proof,... Josh Braun Article · 8 min read · Starting Up How To Get A 35% Cold Email Response Rate Without Selling Your Soul Josh Braun In 6 answers
  23. Cohen answers the fear founders have about niching down, that naming one very specific, concrete customer actually attracts... A Smart Bear Essay · 15 min read · Starting Up Selling to Carol: Why targeting an ICP brings 10x more customers than you expected Jason Cohen In 6 answers
  24. A clean four-step walkthrough, register, list, ship via FBA or self-fulfil, get paid, that answers 'how does the mechanics... sell.amazon.in Article · D2C Learn How Amazon Global Selling Works Amazon India In 6 answers

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