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John L. Holland
American psychologist (1919-2008) · United States · On the map · Academics · Died at 89
John Lewis Holland was an American psychologist and professor emeritus of Sociology at Johns Hopkins University. He was the creator of the career development model, Holland Occupational Themes, commonly known as the Holland Codes.
John L. Holland is read about 38 times a day, in 10 languages.
A typical day, 30 days to 9 October 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 120 days, one point a day.
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Awards
About this person
Country
United States
Category
Academics
Type
Academic
Status
Deceased
Dates
Lived 1919 to 2008 · aged 89
