The Personality Brokers

"The Personality Brokers" explores the origins and global influence of the Myers-Briggs Type Indicator, a widely used personality test developed a century ago by a mother and daughter team. The book traces how this simple questionnaire gained popularity across diverse settings—from corporations to schools—despite ongoing debates about its scientific validation. Through original research and unpublished documents, it offers a compelling look at how the test shaped our understanding of identity and the ways we categorize the self.