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. The raw data report: 85M+ emails distilled into rules you can apply to tomorrow's send. tactics.30mpc.com Guide · How Founders Use AI The Ultimate Cold Email Data Report (30MPC x Gong) 30 Minutes to President's Club + Gong
  2. A tactical hour on using AI for research and relevance without drifting into robotic messaging. outboundsquad.com Podcast · How Founders Use AI AI Masterclass: THE guide on how to leverage AI for outbound (Elric Legloire) Jason Bay (Outbound Squad)
  3. Straightforward, tool-agnostic guide on where AI helps in cold email and where humans must stay. hunter.io Guide · How Founders Use AI How To Use AI For Cold Email (Guide) Hunter.io
  4. Video · How Founders Use AI How AI will redefine cold email in 2025 | Instantly Masterclass Instantly.ai
  5. The audio version covers cold outreach channels, messaging structure, and pricing conversations step by step. open.spotify.com Podcast · How Founders Use AI The ultimate guide to founder-led sales | Jen Abel (Lenny's Podcast) Lenny's Podcast
  6. The sequel: what changes in the motion once early deals start closing. open.spotify.com Podcast · How Founders Use AI Sell the alpha, not the feature: enterprise playbook for $1M to $10M ARR | Jen Abel Lenny's Podcast
  7. The whole founder-led sales framework compressed into one scannable thread. x.com Thread · How Founders Use AI Lenny's thread: the ultimate guide to 0-to-1 sales Lenny Rachitsky
  8. Listen-while-commuting version of the definitive founder-led sales interview. podcasts.apple.com Podcast · How Founders Use AI Founder-led sales | Pete Kazanjy (Lenny's Podcast, Apple) Lenny's Podcast
  9. Founders who just finished the journey share what worked, recorded while the lessons were fresh. open.spotify.com Podcast · How Founders Use AI Founder-Led Sales Stories with Pete Kazanjy Pete Kazanjy
  10. Kazanjy retelling the motion as a practitioner story rather than a framework lecture. dock.us Podcast · How Founders Use AI Founding Sales: Peter Kazanjy on selling as Co-Founder at Atrium (Grow & Tell) Dock (Grow & Tell)
  11. Shows what comes after founder-led sales, so you know when and how to hand the motion off. cloud.substack.com Article · How Founders Use AI How to Build Your First SDR Team, With Sam Blond (ex-CRO of Brex) Sam Blond / Bessemer Cloud
  12. A second angle on Kazanjy's playbook with more focus on mindset shifts for founders. salesiqglobal.com Podcast · How Founders Use AI Founder-Led Selling, with Peter Kazanjy (SalesIQ) SalesIQ Global
  13. A startup-banking team explains AI-assisted ICP work with the crucial caveats about validation. mercury.com Article · How Founders Use AI How AI can help startups define their ICP Mercury
  14. Argues an ICP must be built backward from closed-won data, the discipline most founders skip. clay.com Guide · How Founders Use AI The Complete Guide to Ideal Customer Profiles (ICP) Clay
  15. Turns fit and intent into a score so you contact the best 20% of your list first. clay.com Guide · How Founders Use AI Lead Scoring in Clay: Step-by-Step Guide Clay
  16. A vendor-neutral-enough walkthrough of the ICP-to-list pipeline inside Clay. smartlead.ai Guide · How Founders Use AI Build Lead Lists With Clay: Step-by-Step Tutorial Smartlead
  17. Video · How Founders Use AI Apollo.io Lead Generation Tutorial 2025: Tips for Finding Target Prospects Independent GTM creator (YouTube)
  18. Video · How Founders Use AI How to Use Apollo.io (2025) | Complete & Easy Tutorial For Beginners Independent GTM creator (YouTube)
  19. Video · How Founders Use AI (Apollo.io 2026) B2B Lead Generation Tutorial For Beginners Independent GTM creator (YouTube)
  20. Video · How Founders Use AI Forget Apollo, Use AI to Generate Leads in 2025 Independent GTM creator (YouTube)
  21. The official lesson on sourcing the humans, not just the companies, that match your ICP. university.clay.com Course · How Founders Use AI Finding People in Clay (Clay University lesson) Clay
  22. A Chennai-built sales platform's honest survey of the AI prospecting tool landscape. klenty.com Article · How Founders Use AI Future of Sales: 12 Must-Have AI Prospecting Tools Klenty
  23. Turns 30 minutes of manual account research into a two-minute AI briefing, with prompts. skaled.com Guide · How Founders Use AI How to Use ChatGPT for Prospect Research Skaled Consulting
  24. YC's grounding reminder that a narrow ICP beats a big TAM when you are selling yourself. ycombinator.com Article · How Founders Use AI Sales Advice for Technical Founders Y Combinator

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The hubs

Starting Up Find an idea, validate it, build, and land your first customers. 1327 questions GTM Go-to-market, from breaking in to how the best teams do it. 379 questions D2C Building a direct-to-consumer brand, India-first. 512 questions Wealth Paying yourself, ESOPs, secondaries, and de-risking founder wealth. 165 questions How Founders Use AI How founders actually put AI to work, mapped topic by topic. 360 questions Glossary Plain-language definitions of the startup and VC terms you'll hit. 425 terms