The Biblioteca Nacional do Brasil (in English National Library of Brazil) is the depository of the bibliographic and documentary heritage of Brazil. It is located in Rio de Janeiro, at Cinelândia square. It was founded in 1810
The largest library in Latin America and the 7th world largest one, its collections include about 9 million items.
In 1907, presidential Decree no. 1825 established the duty of all publishers to send one copy of each publication to then-called Bibliotheca Nacional. In 2004, this decree was revoked by congressional Law no. 10,994, still in force, upholding the same mandate but updating its provisions.
The website, in Portuguese, is