My name is Adam Grant, and I am an INTJ. That’s what I learned from a wildly popular personality test, which is taken by more than 2.5 million people a year, and used by 89 of the Fortune 100 companies. It’s called the Myers-Briggs Type Indicator (MBTI), and my score means that I’m more introverted than extraverted, intuiting than sensing, thinking than feeling, and judging than perceiving. As I reflected on the results, I experienced flashes of insight. Although I spend much of my time teaching and speaking on stage, I am more of an introvert—I’ve always preferred a good book to a wild party. And I have occasionally kept lists of my to-do lists.
