Johari's Window is a card game that brings a splash of psychology to the table. It was inspired by a model that helps us understand what we show or hide about ourselves and others. In the game, each player receives four types of hands: open, hidden, blind, and unknown, representing different levels of knowledge about themselves and others. The goal is simple yet fun: make a bid on how many tricks you will win and then try to match that prediction with your opponents. The trick-taking mechanic is the heart of the game, requiring you to watch the cards that have already been played and try to anticipate others’ moves. The outcome can be surprising, as the information you have – or lack – changes each round. The game lasts between 20 and 30 minutes, perfect for those looking for something quick yet engaging. Five players can join, but it also works well with three or four. The production is lean: a standard deck, score tokens, and a short rule sheet. The scientific theme may sound a bit academic, but the game remains accessible, as the trick-taking mechanic is familiar to those who have played games like Hearts or Spades. If you enjoy games that blend card strategy with a touch of psychology, Johari's Window will surprise you, offering an experience that goes beyond simple “who wins the trick.”