Lenny Rachitsky's weekly newsletter on product management, growth, and startups — launched in 2019 as a Substack and growing to one of the most-subscribed paid newsletters — featuring data-driven frameworks, benchmarks, and tactical product advice.
Created the PM community's most trusted data-driven framework resource — the newsletter's signature benchmarks (what is a good activation rate? what is good retention?) and framework articles became the standard reference for product teams making decisions.
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