In order to work in most public and academic libraries, individuals must earn a Master of Library and Information Science (MLIS). Students who enroll in this program acquire the skills they will need to assume roles as librarians. Courses teach aspiring librarians how to organize information, use technology and offer educational and other library services. Programs also allow students to specialize in specific areas, including archives management and preservation. Graduates of the master's program can continue their studies at the doctoral level, where they learn about the types of advanced research methods that will help them become library science professors or researchers.