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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.
John Holland is primarily identified as a counseling psychologist whose main theoretical and practical contributions have been focused in the field of career choice and adjustment. He has been concerned with the choice and processes involved in selecting, adapting to, and changing occupations.
John Philip Holland (born February 24?, 1841, Liscannor, County Clare, Ireland—died August 12, 1914, Newark, New Jersey, U.S.) was an Irish-born inventor who was the father of the modern submarine. He designed and built the first underwater vessel accepted by the U.S. Navy .
Learn about John Holland, the found of the Self-Directed Search assessment, and the history of the test here.
My Life with A Theory: John L. Holland's Autobiography and Theory of Careers, edited by Jack R. Rayman & Gary D. Gottfredson. 2020. NCDA. 366 pages. This book is a masterclass on John Holland.
Nov 1, 2011 · Dr. John Holland, one of the most influential psychologists in the 20th century, has left a profound legacy. His theoretical work and his scientist-practitioner approach to test development and...
Presents an obituary for John L. Holland whose theory of vocational personalities and work environments transformed vocational assistance worldwide. Described are his educational background and career accomplishments.
