The National Library of Spain is a center for information and documentation of Spanish culture in written form, with a total collection of 8 million items. Among them: 4 million books; 2.697 million pamphlets; 1,610 newspapers; 80,000 current periodicals; 25,000 manuscripts; 3,000 ancient books; 237,900 rare books; 25,700 prints; and 674,000 engravings. 29,000 portraits; 1 million photos; 462,000 postcards; 98,000 bookplates; 920,000 posters; 104,000 maps; 210,000 sheet music; 320,000 audio recordings; 26,000 audio-visual materials; microblogs 100,000 pieces of films; 6,598 pieces of electronic files.