Working notes from product people

Ask the people who’ve done it.

A free, searchable library of 1,799 of the best product-management essays, podcast episodes and posts, from Lenny Rachitsky, Marty Cagan, Teresa Torres and seven others, that answers your questions with citations.

For PMs, founders and anyone building products

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Answers quote and cite the source notes

Unofficial · not affiliated with any author · every note links to the original

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01 — Topics · the card catalogueBrowse by topic

Postfree essay or newsletter postPaidsubscriber post, summary onlyPodcastepisode with key learningsXpost on XHover a tag for the publication

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Open drawer · 07

PM career & craft

472 notes · 92 people · 2005–2026
The Beautiful Mess · John Cutler♥ 38

TBM 443: The Standard Setter

Oct 3, 2026

“May I present to you: The Standard-Setter. The Standard-Setter’s superpower is failing upward while confusing pressure with motivation. They believe everyone has another gear, and that their job is to force people into it.”

The Looking Glass · Julie Zhuo♥ 53

What will we use our minds for?

Oct 7, 2026
Subscriber post — summary only

The essay opens with an anecdote about a journalist's first impressions of a notable figure, using it as a jumping-off point to ask what humans should use their minds for as AI takes on more cognitive work. It frames…

@shreyas · Shreyas Doshi on X♥ 7
Of course, enabling product success has always been the main job of a PM. Execution, while essential (by definition), was never the main job of a PM. Proof: This is a tweet I had sent in the pre-generative AI era:
Lenny’s Podcast121 min

The grief, loneliness, and burnout sweeping through the tech industry right now

Molly Graham · Sep 27, 2026
Key learnings
  • Change is scary and hard, but leaning into it and letting go of old responsibilities is still the best way to grow, even as the…
  • Name the emotions change brings, including grief for lost craft; leaders who normalize these feelings help people feel less alone…
  • Treat AI like a lazy junior intern: give it context, review its output, and never ship its work unchecked, since accountability…
SVPG · Marty CaganSep 25, 2026

Experts Lead Experts

Sep 25, 2026 · 3 min

Marty Cagan argues that the current trend of cutting managers in favor of pure individual-contributor builders is a temporary phase rather than the future. He restates the principle that experts lead experts: effective…

@shreyas · Shreyas Doshi on X♥ 210
Something that’s changed rapidly in the past year: Product Managers who’ve historically viewed their role as “my main job is to execute” are finding it way harder to get hired at top companies than those who’ve viewed their role as “my main job is to make the product successful”

02 — FrameworksModels, annotated.

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03 — PeopleWho wrote the notes.

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04 — QuestionsAnswered from the notes.

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Where notes come from

NewsletterLenny’s Newsletter110 free posts, with a longer excerpt.
Subscriber postsSummary only233 paid posts: our summary, at most two short quotes, and a link.
PodcastLenny’s Podcast323 episodes, each with 5–8 key learnings and timestamps.
EssaysSVPG · The Beautiful Mess499 essays from Marty Cagan and John Cutler.
Substack & blogsShreyas · Julie · Jason · Hiten577 essays and posts from independent writers.
XPosts on product66 posts, filtered for product relevance.