This article discusses various theories of career development that help individuals understand the processes involved in developing their careers over time. It covers four prominent career development theories, including Holland’s Theory of Vocational Choice, Super’s Theory of Career Development, Krumboltz’s Social Learning Theory, and Ginsberg’s Career Development Theory. The article explains the key principles of each theory and how they can be applied to guide individuals toward making informed career decisions and achieving career success. Overall, the article provides a comprehensive overview of the major career development theories, making it a useful resource for anyone seeking to understand the dynamics of career development.