7 largest libraries in the World

1. Library of Congress - Washington DC, USA - 29 million books
2. National Library of China - Beijing, China - 22 million books
3. Library of the Russian Academy of Sciences - St Petersburg, Russia - 20 million books
4. National Library of Canada - Ottawa, Canada - 18.8 million books
5. Deutsche Biblothek - Frankfurt, Germany - 18.5 million books
6. British Library - London, England - 16 million books
7. Institute for Scientific Information on Social Sciences of the Russian Academy of Sciences - Moscow, Russia - 13.5 Million Books