MasterFILE Complete Designed specifically for public libraries and K-12 schools, MasterFILE Premier contains full text for 1,600 periodicals covering general reference, business, health, education, general science, multicultural issues and much more. This database also contains full text for more than 450 reference books, 73,000 primary source documents, and an Image Collection of 1.4 million photos, maps and flags. MasterFILE Premier offers PDF backfiles (as far back as 1922) for key publications including American Libraries, Foreign Affairs, History Today, Library Journal, National Review, Saturday Evening Post, etc.