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. Holland was born and raised in Omaha, Nebraska. At the age of 20, Holland's father emigrated from England to the U.S. He initially worked as a laborer, later becoming an advertising executive after attending night school at the YMCA. Holland's mother was an elementary school teacher, and he was one of four children. More information...
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