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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 consumer counterpart to finding B2B customers, focused on manually recruiting your first users for a consumer product. It... Lenny's Newsletter Article · Starting Up How to Find Your Early Adopters by Doing Things That Don't Scale Lenny Rachitsky In 14 answers
  2. The definitive short read on why disruptive ideas get dismissed as toys, and why that dismissal is your opening. It reframes... cdixon.org Article · ~5 min read · Starting Up The Next Big Thing Will Start Out Looking Like a Toy Chris Dixon In 13 answers
  3. The deepest no-code stack, database, workflows, and custom UI, for building genuinely complex web apps and marketplaces without... bubble.io Tool · platform · Starting Up Bubble, No-Code Full-Stack App Builder Bubble In 13 answers
  4. A YC partner and ex-Airbnb growth lead gives a tactical, no-fluff talk on landing early customers for both B2B and B2C. It's... YC Startup Library Video · ~30 min video · Starting Up How to Get Your First Customers Gustaf Alstromer (Y Combinator) In 13 answers
  5. The definitive playbook for network and community-led products, drawn from Andrew Chen's a16z experience and interviews with... Harper Business Book · Book (~368 pages) · Starting Up The Cold Start Problem: How to Start and Scale Network Effects Andrew Chen In 13 answers
  6. The best free on-ramp for founders who feel 'too early' for a funded accelerator, it distils YC's thinking into a structured... Y Combinator Course · ~7-week self-paced course · Starting Up Startup School, Free Startup Course Y Combinator In 13 answers
  7. The authoritative, government-hosted explanation of exactly what a DPIIT-recognised startup gets in public procurement. If you... startupindia.gov.in Article · single-page policy explainer · Starting Up Procurement by Government, Public Procurement Benefits for DPIIT Startups Startup India (DPIIT), Ministry of Commerce & Industry In 13 answers
  8. Most market sizing advice online is generic TAM SAM SOM filler. This one is written by an investor, backed by a survey of 30... Pear VC Essay · ~15 min read · Starting Up Market Sizing Guide Ian Taylor In 13 answers
  9. This is the essay that forces the honest question underneath your idea: are you building a growth company or a good small... Paul Graham Essay · ~20 min read · Starting Up Startup = Growth Paul Graham In 13 answers
  10. Thiel makes the counterintuitive case that dominating a tiny market first is a feature, not a bug: every lasting monopoly... Penguin Random House India Book · ~224 pages · Starting Up Zero to One: Notes on Startups, or How to Build the Future Peter Thiel with Blake Masters In 13 answers
  11. Currier's whole argument is that founder-market fit is more than the one line on a resume that says 'domain expert'. He breaks... NFX Article · ~12 min read · Starting Up The 4 Signs of Founder-Market Fit James Currier In 12 answers
  12. Blume's annual report is the single best data-grounded read on what is actually happening in Indian internet and consumption,... Blume Ventures Article · ~180 charts · Starting Up Indus Valley Annual Report 2025 Sajith Pai, Anurag Pagaria and team (Blume Ventures) In 12 answers
  13. Most founders treat customer research as a one-time pre-launch exercise, then go quiet once the product ships. Torres makes the... Amazon Book · ~200 pages · Starting Up Continuous Discovery Habits: Discover Products that Create Customer Value and Business Value Teresa Torres In 12 answers
  14. This is the most concrete walkthrough of how to test a niche when you have nothing built yet: put up a page describing the... kromatic.com Essay · ~15 min read · Starting Up Fake Door / Smoke Test Kromatic (The Real Startup Book) In 12 answers
  15. Blomfield (founder of Monzo and GoCarchless, now a YC partner) gives the concrete mechanics of closing that first B2B deal:... Y Combinator Startup Library Article · 25 min read · Starting Up The Sales Playbook for Founders Tom Blomfield In 12 answers
  16. The two ways to fake a product while you test real demand. Do the work by hand in the open (concierge), or hide the manual work... LogRocket Article · ~12 min read · Starting Up Concierge vs. Wizard of Oz MVP LogRocket In 12 answers
  17. To say no to the right requests you need feedback you can trust, and this shows how to get it by watching customers rather than... First Round Review Article · 12 min read · Starting Up Get in the Van and Other Tips for Getting Meaningful Customer Feedback Michael Sippey In 12 answers
  18. Lenny interviewed founders of Gong, Notion, Figma, Amplitude, Retool and more to trace where their idea actually came from. The... Lenny's Newsletter Article · About 15 min read · Starting Up How the Most Successful B2B Startups Came Up With Their Original Idea Lenny Rachitsky In 12 answers
  19. Podcast · Full episode · GTM 7 Myths About Selling B2B SaaS In India ft Unicommerce Founder Kapil Makhija Siddhartha Ahluwalia with Kapil Makhija In 12 answers
  20. The mutual fund industry body investor corner: fund basics, NAVs, and how SIPs work, straight from the source. AMFI Guide · Wealth AMFI: mutual fund investor resources AMFI In 12 answers
  21. A short, pointed essay on why the best ideas grow organically out of the founder's own life and knowledge, the essence of... paulgraham.com Article · ~5 min read · Starting Up Organic Startup Ideas Paul Graham In 11 answers
  22. The foundational text of customer development, 'get out of the building' started here and became the backbone of the Lean... steveblank.com Book · ~370 pages · Starting Up The Four Steps to the Epiphany: Successful Strategies for Products that Win Steve Blank In 11 answers
  23. Design tactics written specifically for developers and non-designers who need to ship good-looking UI without a design... refactoringui.com Book · ~250 pages · Starting Up Refactoring UI Adam Wathan & Steve Schoger In 11 answers
  24. The research-backed classic on consultative selling, the antidote to 'pushy salesperson' instincts. Its... McGraw-Hill Book · book (~200 pages) · Starting Up SPIN Selling Neil Rackham In 11 answers

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