
The 22 Immutable Laws of Marketing came up with a genuine on-air endorsement 5 times across the episodes we processed. This page collects every one of those moments: who said it, what they said, and the exact point in the episode.
Al Ries and Jack Trout's The 22 Immutable Laws of Marketing has five mentions on Tim Ferriss, almost always from guests building or scaling a company.
It's an older marketing book still getting cited by name decades after publication. Each mention below links to the exact quote and the moment it happens in the episode.

Two world-renowned marketing consultants and bestselling authors present the definitive rules of marketing.
Where to get it & every mention“within The 22 Immutable Laws of Marketing, there's one chapter called "The Law of Category," and it gives old examples.” — Tim Ferriss 02:53:28
Noah Kagan and Tim Ferriss break down launching a million-dollar business in a weekend through asking, presales, and cheap validation.
“there's a chapter called The Law of category in the 22 immutable laws of marketing a lot of the other chapters are outdated this one everyone should read” — Tim Ferriss 00:40:40
Tim Ferriss tells Bill Gurley how a bootstrapped startup, a burnout book, and angel bets built his creator empire.
“The 22 Immutable Laws of Marketing. Get the older one, not the for the internet, which is horribly out of date. Get the older one that has the beer examples” — Tim Ferriss 00:48:20
Tim Ferriss fields a solo live Q&A on PR, marketing, launching products, selling to the affluent, time dilation, and his personal protocols.
“the law of category it's a chapter in a book called the 22 immutable laws of marketing but it talks about exactly what you just mentioned” — Tim Ferriss 00:43:28
Stewart Copeland on The Police, scoring films, the purpose of music, productive anger, and saying yes.
“i would suggest getting a book like the 22 immutable laws of marketing reading a short chapter called the law of category” — Tim Ferriss 02:06:05
Tim Ferriss breaks down how he built a 700M-download podcast, covering gear, guests, prep, monetization, and growth with Chris Hutchins.