John L. Holland

John Lewis Holland
Born(1919-10-21)October 21, 1919
DiedNovember 27, 2008(2008-11-27) (aged 89)
EducationPh.D. Psychology, University of Minnesota (1952)
B.A. Psychology, University of Nebraska at Omaha (1942)
Omaha Central High School (1938)
Occupation(s)Psychologist, Researcher
EmployerJohns Hopkins University (1969–1980)
Known forThe Holland Codes (Creator)
Notable workMaking Vocational Choices: A Theory of Careers
The Self Directed Search
The Dictionary of Holland Occupational Codes

John Lewis Holland (October 21, 1919 – November 27, 2008) 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.