People in type theory
Biographies of the thinkers behind INFJ, MBTI, and cognitive functions — research notes, not hagiography.
Carl Jung (1875–1961)
Founder of analytical psychology
Dario Nardi
Neuroscience of Personality researcher
David Keirsey (1921–2013)
Temperament theorist; author of Please Understand Me
Isabel Briggs Myers (1897–1980)
MBTI co-creator; author of Gifts Differing
Janet Thuesen
Workplace MBTI co-author; Kroeger Ott partner
John Beebe (born 1939)
Jungian analyst; eight-function model architect
Katharine Cook Briggs (1875–1968)
MBTI co-originator; typology pioneer
Marie-Louise von Franz (1915–1998)
Jungian analyst; typology commentator
Naomi Quenk (1936–2021)
MBTI stress and grip researcher
Otto Kroeger (1933–2013)
Workplace MBTI consultant; co-author of Type Talk