This study aims to identify the career movement patterns of librarians, analyze factors influencing their career movements, and compare differences in such factors between librarians and chief librarians. Findings showed that the jobs with the highest retention rate were those in public libraries, that library automation system developers showed the highest rate of career movement, and that school library and the public library librarians had the highest rate of returning to the career and selecting the first career as the last one, respectively. (Contains 6 figures and 22 tables.)