MasterFILE Premier Contains full text for nearly 1,700 periodicals covering general reference, business, health, education, general science, and multicultural issues. It also contains more than 500 reference books, over 107,000 primary source documents, and an Image Collection of over 510,000 photos, maps & flags. It offers PDF backfiles (as far back as 1975) for key publications including American Libraries, Foreign Affairs, History Today, Judaism, Library Journal, National Review, Saturday Evening Post, etc.