Dr. A.J. Drenth

A.J. is the founder and owner of PersonalityJunkie.com, which he conceived in 2009 with the aim of exploring the theoretical underpinnings of psychological type and related areas of personality study. His research has primarily involved Jungian / Myers-Briggs typology, while remaining conversant with the Enneagram and Big Five models as well. A.J. has authored four books on personality typology and currently boasts the two best-selling INTP books on Amazon. His work has been referenced in numerous books, articles, and e-publications.