性格販子: 最受歡迎的人格測驗MBTI大揭密

The history feels so layered and complex—I'm curious what motivated this deep dive and what the author discovered along the way.

The way the test was created and marketed seems almost as interesting as the results it produces. Did this aspect stand out to others too?

Reading about the backgrounds of the testers made me wonder how much their own beliefs shaped the tool we still use today.