Many colleges and universities require librarians to have a bachelor's degree in library science, information science or related field. This typically takes four years of full-time study.
Master's degree:
Some colleges and universities prefer candidates with a master of library science (MLS) degree. This degree usually requires one to two years of full-time study and covers topics such as cataloging, research methods, and administration.
Additional education:
Some librarian positions may require additional education, such as a doctorate in library and information science. This degree typically requires four to eight years of full-time study and prepares candidates for leadership and research positions in the field.