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John Holland is a trusted partner for road and rail projects that transform journeys and connect people. Learn about their purpose, culture, projects, careers, and latest news.
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.
The Self-Directed Search (SDS) is a career assessment tool based on John Holland's RIASEC theory, which classifies people and work environments into six types. The SDS helps you find occupations and fields of study that match your personality, interests, and goals.
The theory of vocational choice developed by John L. Holland is one of the most widely researched and applied theories of career development. Based on the premise that personality factors underlie career choices, his theory postulates that people project self-and world-of-work views onto occupational titles and make career decisions that ...
This article celebrates the 50th anniversary of the introduction of John L. Holland’s (1959) theory of vocational personalities and work environments by describing the theory’s development and evolution, its instrumentation, and its current status.
This book presents John L. Holland's RIASEC (Realistic, Investigative, Artistic, Social, Enterprising, Conventional) theory of careers and its successful application to vocational life. The primary focus is to explain vocational behavior and suggest practical ideas to help people select jobs, change jobs, and attain vocational satisfaction.
John Holland is a renowned spirit messenger and author of Born Knowing and The Spirit Whisper. He offers psychic readings, workshops, events, and mobile apps to help you connect with your loved ones and your inner guidance.
