Master of Library and Information Science
MASTER'S DEGREE IN LIBRARY AND INFORMATION SCIENCE
Master of Library and Information Studies; MLISc; Master of Library Science; Master's of Library Science; Master of Science in Library Science; MSLS
The Master of Library and Information Science (MLIS), also referred to as the Master of Library and Information Studies, is the master's degree that is required for most professional librarian positions in the United States. The MLIS is a relatively recent degree; an older and still common degree designation for librarians to acquire is the Master of Library Science (MLS), or Master of Science in Library Science (MSLS) degree.