Spot the trap
before you decide.

52 thinking mistakes and decision shortcuts on playing cards. Flip any card for a 2-minute exercise.

Mental models are named patterns in how people think, decide, and get fooled. Each card below names one. Flip it for an exercise you can do in 2 minutes — pick a card, try the prompt, then apply it to something real this week.

The Full Deck

Flip any card. The back tells you what to do.

Everything in the deck.