2. The British Library is the national library of the United Kingdom and one of the world's greatest research libraries. It provides world class information services to the academic, business, research and scientific communities and offers unparalleled access to the world's largest and most comprehensive research collection. The Library's collection has developed over 250 years and exceeds 150 million separate items representing every age of written civilisation. It includes: books, journals, manuscripts, maps, stamps, music, patents, newspapers and sound recordings in all written and spoken languages www.bl.uk.