The British Library is the national library of Britain and the library with the largest collection of books in the world. The library is one of the largest research libraries in the world, with more than1500,000 items in all known languages and formats: books, periodicals, newspapers, magazines, sound and music records, patents, databases, maps, stamps, printed matter, drawings and so on. The library's collection includes about140,000 books [1] (second only to the Library of Congress), as well as a large number of manuscripts and historical objects, dating back to 300 BC. As a statutory depository library, the British Library accepts all books published in Britain and Ireland, including all foreign books published in Britain. It also buys many articles published only outside Britain and Ireland. British libraries add about 3 million entries every year. The library is a non-departmental public institution sponsored by the Ministry of Culture, Media and Sports. It is located on the north side of Euston Road in St Pancras, London, between Euston Railway Station and St Pancras Railway Station.

The Royal Library of Alexandria in Alexandria, Egypt, or the ancient library of Alexandria, seems to be the largest and most important library in the ancient world. It flourished under the sponsorship of Ptolemy dynasty, and it was an important academic center from the 3rd century BC to the Roman conquest of Egypt in 48 BC. Later, it was destroyed, and scholars used a related library called Serapeum, which was located in another part of the city and built on the collection of Pergamus, a gift from marc anthony to Cleopatra. This library is described as the "Daughter Library" and is also the temple of the god Serabis. This library was conceived and opened during the reign of Ptolemy I Soter (323-283 BC) or his son Ptolemy II (283-246 BC). Plutarch (CE 46–120) wrote that during his visit to Alexandria in 48 BC, Julius Caesar set fire to his ship and accidentally burned down the library in order to thwart Archillas's attempt to restrict his maritime communication ability. [2]Edward gibbon described how his daughter's library was also destroyed by the Bishop of Alexandria, Theophilo, who ordered the destruction of Serapeum in 39 1 year. The Alexandria Library was completed near the old library in 2002, with the purpose of commemorating and imitating the original works.

French National Library

The French National Library can be traced back to the Royal Library established by Charles V in the Louvre on 1368. It was expanded in the period of Louis XIV and opened to the outside world in 1692. In the radical stage of the French Revolution, when the private libraries of aristocrats and clergy were closed down, the library's collection expanded to more than 300,000 volumes. After a series of institutional changes in France, it became the National Library of the Empire and was moved to a new building designed by Henri Labrouste in Richelieu Street in 1868. After Labrouste died in 1875, the library was further expanded by the college architect Jean-Louis Pascal, including the grand staircase and the oval room. By 1896, the library has become the largest collection in the world, although it has been surpassed by other libraries.

The Swedish National Library (Swedish: kungliga bibliotek et, kb, meaning "Royal Library") is the national library of Sweden. Therefore, it collects and preserves all domestic printed and audio-visual materials, as well as the contents published by the Swedish Association abroad. As a research library, it also has a large collection of documents in other languages. & lt/p & gt； & lt/p & gt；