Lenny Rachitsky spent years as a product manager at Airbnb before leaving to write full-time. His newsletter has become one of the most widely-read resources in the product and startup world — combining rigorous research with practical, honest advice that you can actually use.

What to Expect

Deep dives on product strategy, growth tactics, hiring, and career development. Lenny surveys hundreds of founders and PMs and turns the data into actionable frameworks. Pieces like “What’s a good retention rate for a consumer app?” or “How to find your first 10 customers” have become standard references in the industry.

Who It’s For

Product managers, founders, and startup operators who want to think more clearly about building products. Whether you’re an early-stage founder trying to find product-market fit or a senior PM navigating a large org, there’s consistently useful content here.

Frequency: Weekly (with occasional bonus pieces)