Lenny's Newsletter
@lenny.skystack.xyz
Deeply researched product, growth, and career advice—newsletter, podcast, community, and living library
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This is an automated Substack Account of https://lenny.substack.com
Discover more/Create at: @skystack.xyz
How to build your PM second brain with ChatGPT • Use AI to amplify your craft, not replace it
How to build your PM second brain with ChatGPT
Use AI to amplify your craft, not replace it
www.lennysnewsletter.com
December 16, 2025 at 4:56 PM
How to build your PM second brain with ChatGPT • Use AI to amplify your craft, not replace it
How to spot a top 1% startup early • Three key lessons from people who picked multiple iconic companies before they were obvious
How to spot a top 1% startup early
Three key lessons from people who picked multiple iconic companies before they were obvious
www.lennysnewsletter.com
December 9, 2025 at 4:54 PM
How to spot a top 1% startup early • Three key lessons from people who picked multiple iconic companies before they were obvious
A year free of PostHog ($16,500 value): The all-in-one analytics, experimentation, feature flag, surveys, session replay, error tracking, data warehouse, LLM analytics platform • A deal you won’t find anywhere else—bringing the total value of the Product Pass to over $25,000
A year free of PostHog ($16,500 value): The all-in-one analytics, experimentation, feature flag, surveys, session replay, error tracking, data warehouse, LLM analytics platform
A deal you won’t find anywhere else—bringing the total value of the Product Pass to over $25,000
www.lennysnewsletter.com
December 2, 2025 at 4:58 PM
A year free of PostHog ($16,500 value): The all-in-one analytics, experimentation, feature flag, surveys, session replay, error tracking, data warehouse, LLM analytics platform • A deal you won’t find anywhere else—bringing the total value of the Product Pass to over $25,000
A holiday gift guide for tech people with taste 🤌 • No slop here
A holiday gift guide for tech people with taste 🤌
No slop here
www.lennysnewsletter.com
November 20, 2025 at 3:29 PM
A holiday gift guide for tech people with taste 🤌 • No slop here
Ecosystem is the next big growth channel • How to stand out in a noisy landscape by leveraging partners who already have access and trust with your target audience
Ecosystem is the next big growth channel
How to stand out in a noisy landscape by leveraging partners who already have access and trust with your target audience
www.lennysnewsletter.com
November 20, 2025 at 3:29 PM
Ecosystem is the next big growth channel • How to stand out in a noisy landscape by leveraging partners who already have access and trust with your target audience
Part 2 of how to get the most out of your product pass—and welcome, Stripe Atlas, to the bundle! • Tips for taking full advantage of the 17+ free premium products you have access to as a paid subscriber
Part 2 of how to get the most out of your product pass—and welcome, Stripe Atlas, to the bundle!
Tips for taking full advantage of the 17+ free premium products you have access to as a paid subscriber
www.lennysnewsletter.com
November 20, 2025 at 3:29 PM
Part 2 of how to get the most out of your product pass—and welcome, Stripe Atlas, to the bundle! • Tips for taking full advantage of the 17+ free premium products you have access to as a paid subscriber
A builder’s guide to living a long and healthy life • For something a little different
A builder’s guide to living a long and healthy life
For something a little different
www.lennysnewsletter.com
November 20, 2025 at 3:29 PM
A builder’s guide to living a long and healthy life • For something a little different
Everyone should be using Claude Code more • How to get started, and 50 ways non-technical people are using Claude Code in their work and life
Everyone should be using Claude Code more
How to get started, and 50 ways non-technical people are using Claude Code in their work and life
www.lennysnewsletter.com
November 20, 2025 at 3:29 PM
Everyone should be using Claude Code more • How to get started, and 50 ways non-technical people are using Claude Code in their work and life
A free year of Devin: the world’s most advanced autonomous AI software engineer • Insider subscribers now get $1,350/year of Devin, on top of 15 additional premium products. All the advice, community, and tools you need to build and grow a world-class product (and career).
A free year of Devin: the world’s most advanced autonomous AI software engineer
Insider subscribers now get $1,350/year of Devin, on top of 15 additional premium products. All the advice, community, and tools you need to build and grow a world-class product (and career).
www.lennysnewsletter.com
November 20, 2025 at 3:29 PM
A free year of Devin: the world’s most advanced autonomous AI software engineer • Insider subscribers now get $1,350/year of Devin, on top of 15 additional premium products. All the advice, community, and tools you need to build and grow a world-class product (and career).
How to get the most out of your product pass, part 1 • Tips for taking full advantage of the 15+ free premium products you have access to as a paid subscriber
How to get the most out of your product pass, part 1
Tips for taking full advantage of the 15+ free premium products you have access to as a paid subscriber
www.lennysnewsletter.com
November 20, 2025 at 3:29 PM
How to get the most out of your product pass, part 1 • Tips for taking full advantage of the 15+ free premium products you have access to as a paid subscriber
Building eval systems that improve your AI product • A practical guide to moving beyond generic scores and measuring what matters
Building eval systems that improve your AI product
A practical guide to moving beyond generic scores and measuring what matters
www.lennysnewsletter.com
November 20, 2025 at 3:29 PM
Building eval systems that improve your AI product • A practical guide to moving beyond generic scores and measuring what matters
How to find the perfect name • A step-by-step playbook for naming in a noisy and AI-driven product landscape
How to find the perfect name
A step-by-step playbook for naming in a noisy and AI-driven product landscape
www.lennysnewsletter.com
November 20, 2025 at 3:29 PM
How to find the perfect name • A step-by-step playbook for naming in a noisy and AI-driven product landscape
Taking the week off + a newsletter cadence update • Back next week!
Taking the week off + a newsletter cadence update
Back next week!
www.lennysnewsletter.com
November 20, 2025 at 3:29 PM
Taking the week off + a newsletter cadence update • Back next week!
Why your AI product needs a different development lifecycle • Introducing the Continuous Calibration/Continuous Development (CC/CD) framework
Why your AI product needs a different development lifecycle
Introducing the Continuous Calibration/Continuous Development (CC/CD) framework
www.lennysnewsletter.com
November 20, 2025 at 3:29 PM
Why your AI product needs a different development lifecycle • Introducing the Continuous Calibration/Continuous Development (CC/CD) framework
Essential reading for product builders—part 2 • 10 more timeless essays you probably haven’t read but should
Essential reading for product builders—part 2
10 more timeless essays you probably haven’t read but should
www.lennysnewsletter.com
November 20, 2025 at 3:29 PM
Essential reading for product builders—part 2 • 10 more timeless essays you probably haven’t read but should
25 proven tactics to accelerate AI adoption at your company • Practical advice from AI-forward companies like Shopify, Ramp, Zapier, Duolingo, Intercom, and Whoop
25 proven tactics to accelerate AI adoption at your company
Practical advice from AI-forward companies like Shopify, Ramp, Zapier, Duolingo, Intercom, and Whoop
www.lennysnewsletter.com
November 20, 2025 at 3:29 PM
25 proven tactics to accelerate AI adoption at your company • Practical advice from AI-forward companies like Shopify, Ramp, Zapier, Duolingo, Intercom, and Whoop
Announcing 17+ free premium tools available exclusively to paid annual subscribers • Over $15,000 in value for just $350. All the tools, community, and advice you need to build and grow a world-class product and career.
Announcing 17+ free premium tools available exclusively to paid annual subscribers
Over $15,000 in value for just $350. All the tools, community, and advice you need to build and grow a world-class product and career.
www.lennysnewsletter.com
November 20, 2025 at 3:29 PM
Announcing 17+ free premium tools available exclusively to paid annual subscribers • Over $15,000 in value for just $350. All the tools, community, and advice you need to build and grow a world-class product and career.
Build your personal AI copilot • A guide to using AI as a long-term thinking partner (including prompts to get you started)
Build your personal AI copilot
A guide to using AI as a long-term thinking partner (including prompts to get you started)
www.lennysnewsletter.com
November 20, 2025 at 3:29 PM
Build your personal AI copilot • A guide to using AI as a long-term thinking partner (including prompts to get you started)
Essential reading for product builders—part 1 • 7 timeless essays you likely haven’t read but should
Essential reading for product builders—part 1
7 timeless essays you likely haven’t read but should
www.lennysnewsletter.com
November 20, 2025 at 3:29 PM
Essential reading for product builders—part 1 • 7 timeless essays you likely haven’t read but should
What people are vibe coding (and actually using) • 50+ useful/fun/clever examples of what non-technical people are building—to inspire your own vibe-coding journey
What people are vibe coding (and actually using)
50+ useful/fun/clever examples of what non-technical people are building—to inspire your own vibe-coding journey
www.lennysnewsletter.com
November 20, 2025 at 3:29 PM
What people are vibe coding (and actually using) • 50+ useful/fun/clever examples of what non-technical people are building—to inspire your own vibe-coding journey
The definitive guide to mastering analytical thinking interviews • A step-by-step playbook to help you ace your PM interviews
The definitive guide to mastering analytical thinking interviews
A step-by-step playbook to help you ace your PM interviews
www.lennysnewsletter.com
November 20, 2025 at 3:29 PM
The definitive guide to mastering analytical thinking interviews • A step-by-step playbook to help you ace your PM interviews
An AI glossary • The most common AI terms explained, simply
An AI glossary
The most common AI terms explained, simply
www.lennysnewsletter.com
November 20, 2025 at 3:29 PM
An AI glossary • The most common AI terms explained, simply