book hack

The Personality Brokers

Merve Emre

5 mins

3 key insights

Visual, audio & text

The Personality Brokers uncovers the true, yet un-scientific origins of the Myers-Briggs Type Indicator personality test.


The Personality Brokers

The Personality Brokers

by Merve Emre


Are you an INFJ? How about ENTP? Or maybe you're an ISFP? If you don't know what these acronyms stand for, you haven't heard of the most popular personality test in history. But even if you have heard about the MBTI test, you'll be surprised to find out its real origins and beginnings.

The Myers-Briggs Type Indicator (MBTI) test works by assigning a four-letter personality type to a person after they answer a questionnaire. Each type represents one's way of interacting with others, their ambitions, and their overall personalities and feelings.

The MBTI is based on questionable methods that aren't rooted in science. This is the claim of Merve Emre's The Personality Brokers: The Strange History of Myers-Briggs and the Birth of Personality Testing, who dug deep to unravel the secrets it hides and the fallacies it shares on the internet.

Favorite quote

To investigate the history of the Myers-Briggs Type Indicator, the most popular personality inventory in the world, is to court a kind of low-level paranoia. Files disappear. Tapes are erased. People begin to watch you.

- Merve Emre

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