the library of congress is the nation's oldest federal cultural institution, and it serves as the research arm of congress. it is also the largest library in the world, with more than 162 million items. the collections include books, sound recordings, motion pictures, photographs, maps, and manuscripts.

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the new york public library (nypl) has been an essential provider of free books, information, ideas, and education for all new yorkers for more than 100 years.

find and read more books you’ll love, and keep track of the books you want to read. be part of the world’s largest community of book lovers on goodreads.

open library is an open, editable library catalog, building towards a web page for every book ever published. read, borrow, and discover more than 3m books for free.

citation machine® helps students and professionals properly credit the information that they use. cite sources in apa, mla, chicago, turabian, and harvard for free.

the met presents over 5,000 years of art from around the world for everyone to experience and enjoy.

internet archive is a non-profit digital library offering free universal access to books, movies & music, as well as 624 billion archived web pages.