Mário de Andrade Library was the first Brazilian public institution interested in acquiring modern works of art of local and foreign artists (which are placed today in the Pinacoteca Municipal).

[3] It has been a member of United Nations depository libraries system since 1958, though it started receiving UN material nine years earlier, in 1949.

[4] During Sérgio Milliet's administration, the library would have a very large participation in São Paulo intellectual sets.

Its collection includes about 3.2 million items, covering all areas of the knowledge — amongst which a distinct assemblage of over 60,000 rare books, manuscripts, incunabula, maps, prints, brasiliana and others, produced between 15th and 19th centuries.

[3] The Mário Andrade Municipal Library has branches throughout the city, providing circulating materials to general public.