John Geier

John Geier  American Psychologist


John George Geier, III (January 24, 1934 – September 26, 2009) was an American psychologist and inventor of the DISC assessment systems, which improve work/life performance....

First Name John
Last Name Geier
Birthday 24th January, 1934
Zodiac Sign Aquarius
Nationality American
Occupation Psychologist
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