John Geier, Date of Birth, Date of Death
TweetJohn Geier
American psychologist
Date of Birth: 24-Jan-1934
Date of Death: 26-Sep-2009
Profession: psychologist
Nationality: United States
Zodiac Sign: Aquarius 
About John Geier
- John George Geier, III (Flint, Michigan; January 24, 1934 – September 26, 2009) was an American psychologist who worked extensively on the DISC assessment systems, which improve work/life performance.
- Dr.
- Geier has forged a remarkable 40-year career in the assessment process and is known worldwide as the pioneer and founder of personnel selection, training and research.
- He was known as the leader of human assessment.
- During his career, he developed numerous assessment tools, including the DiSC Personal Profile System, and the Personality Factor Profile, used for more than 50 million people around the world and translated to more than 30 different languages.
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