book recommendations
If The Mom Test Changed How You Talk to Users, Read These Next
Seven short, blunt product books for people who loved The Mom Test — customer interviews, discovery, and behavior, with no filler.
product
product-psychology
The Best Books on Product Psychology
The books that explain why users behave the way they do — not process, not frameworks. Kahneman, Ariely, Cialdini, Norman, and the rest, with a quote and an honest drawback for each.
product theory
The Cobra Effect: Why Your Best Metric Might Be Breeding Snakes
Every incentive creates a game. The Cobra Effect is what happens when it's not the game you wanted—and why your best-looking metric might be the one breeding snakes.
product theory
The IKEA Effect: Why Users Love the Ugly Thing They Made
People value what they build far beyond its objective worth. The best products don't just get used — they get built on. Here's how to design for it.
product theory
Hedonic Stockholm Syndrome: Why Users Cling to Products They Hate
People don't stay in bad situations because they can't see better options. They stay because their brain protects the known from the threat of the unknown.
conways-law
Conway's Law: Why Your App Feels Like Three Different Companies
The seams in your product are copies of the seams in your org chart. That's not a metaphor — it's Conway's Law, and it predicts what your app feels like to use.
mental models
Mental Models for Product Managers: 12 That Actually Change Decisions
Most product decisions go wrong for reasons that already have names. Here are 12 mental models — what each one is, a concrete product example, and when it quietly lies to you.
pricing
Charm Pricing: Why the Last Digit Is Positioning, Not Math
Everyone knows the $9.99 trick. Everyone still falls for it. Here's why the last digit of your price is a positioning decision, not a math one.
jobs-to-be-done
Jobs To Be Done: Why Nobody Actually Wants Your Product
A fast-food chain couldn't sell more milkshakes—until they stopped studying the milkshake and started watching who bought it, and when. That's Jobs to Be Done.
product theory
The Decoy Effect: The Option That Exists to Lose
The medium popcorn was never meant to sell. It was meant to sell the large. Meet the decoy effect—and why it lives on your pricing page.
anchoring
Anchoring: The First Number Always Wins
A real estate agent shows you an $800,000 house you don't love. The next one is $650,000, and suddenly it's a steal. You're not judging the house. You're judging the first number that entered your head.
product theory
The Sunk Cost Fallacy: Why Your Users Stay (and Why That Should Scare You)
Past investment shouldn't influence future decisions, but it always does. How the sunk cost fallacy retains your users — and why the retention it buys you might be a prison, not a product.