Read the original at Lenny’s Newsletter ↗lennysnewsletter.com · subscriber post
By Lenny Rachitsky · lennysnewsletter.com · @lennysan on X · YouTube · LinkedIn
A companion post to a First Round Review essay, built around an interview with Booking.com's former CMO Arthur Kosten. It lays out five lessons from Booking's early growth: letting performance marketing shape supply, running a tiny team at large spend, finding product-channel fit with Google AdWords, turning supply gaps into long-tail advantages, and localizing ad copy through testing. The core argument is that growth comes from aligning the whole business around the channel and customer demand.
Subscriber post — summary only01Key takeaways
- Let paid marketing feed supply decisions, so losses in ad auctions reveal product or inventory gaps to fix.
- Treat competitors' wins as evidence they do something better, rather than assuming they are irrational.
- Seek product-channel fit, choosing a growth channel the organization's machinery can fully serve.
- Turn structural disadvantages, like lacking chain hotels, into advantages by focusing on overlooked long-tail markets.
- Let A/B test results decide copy and localization, even when native speakers prefer other wording.
“Our goal was to find out why we were losing in the paid ads auction — was a competitor doing something better, or are we…”Arthur Kosten · Lenny’s Newsletter
02Frameworks mentioned
Summary and takeaways written by PM Atlas; quotes are short excerpts. © the original author.