The New York Public Library (NYPL) is a chartered public library system in New York City, United States. With nearly 53 million items and 92 locations, the New York Public Library is the second-largest public library in the United States, behind the Library of Congress, and sixth-largest in the world. It is a private, non-governmental, independently managed, nonprofit corporation operating with both private and public financing.
The library has branches in the boroughs of the Bronx, Manhattan, and Staten Island and affiliations with academic and professional libraries in the New York metropolitan area. The city's other two boroughs, Brooklyn and Queens, are not served by the New York Public Library system, but rather by their respective borough library systems: the Brooklyn Public Library and the Queens Public Library. The branch libraries are open to the general public and consist of circulating libraries. The New York Public Library also has four research libraries, which are also open to the general public.
The library, officially chartered as The New York Public Library, Astor, Lenox and Tilden Foundations, was developed in the 19th century, founded from an amalgamation of grass-roots libraries and social libraries of bibliophiles and the wealthy, aided by the philanthropy of the wealthiest Americans of their age.
The "New York Public Library" name may also refer to its Main Branch, which is easily recognizable by its lion statues named Patience and Fortitude that sit either side of the entrance. The branch was declared a National Historic Landmark in 1965, listed on the National Register of Historic Places in 1966, and designated a New York City Landmark in 1967.
At the behest of Joseph Cogswell, John Jacob Astor added a codicil to his will to bequeath $400,000 (equivalent of $14.9 million in 2025) for the creation of a public library. After Astor's death in 1848, the resulting board of trustees executed the will's conditions and constructed the Astor Library in 1854 in the East Village.
The library created was a free reference library; its books were not permitted to circulate. By 1872, the Astor Library was described in a New York Times editorial as a "major reference and research resource", but, "Popular it certainly is not, and, so greatly is it lacking in the essentials of a public library, that its stores might almost as well be under lock and key, for any access the masses of the people can get thereto".
An act of the New York State Legislature incorporated the Lenox Library in 1870. The library was built on Fifth Avenue, between 70th and 71st Streets, in 1877. Bibliophile and philanthropist James Lenox donated a vast collection of his Americana, art works, manuscripts, and rare books, including the first Gutenberg Bible in the New World. At its inception, the library charged admission and did not permit physical access to any literary items.
Former Governor of New York and presidential candidate Samuel J. Tilden believed that a library with citywide reach was required, and upon his death in 1886, he bequeathed the bulk of his fortune—about $2.4 million (equivalent of $86 million in 2025)—to "establish and maintain a free library and reading room in the city of New York". This money would sit untouched in a trust for several years, until John Bigelow, a New York attorney, and Andrew Haswell Green, both trustees of the Tilden fortune, came up with an idea to merge two of the city's largest libraries.
Both the Astor and Lenox libraries were struggling financially. Although New York City already had numerous libraries in the 19th century, almost all of them were privately funded and many charged admission or usage fees (a notable exception was Cooper Union, which opened its free reading room to the public in 1859). Bigelow, the most prominent supporter of the plan to merge the two libraries found support in Lewis Cass Ledyard, a member of the Tilden Board, as well as John Cadwalader, on the Astor board. Eventually, John Stewart Kennedy, president of the Lenox board, also came to support the plan.
On May 23, 1895, Bigelow, Cadwalader, and George L. Rives agreed to create "The New York Public Library, Astor, Lenox and Tilden Foundations". The plan was hailed as an example of private philanthropy for the public good. On December 11, John Shaw Billings was named as the library's first director. The newly established library consolidated with the grass-roots New York Free Circulating Library in February 1901.
In March, Andrew Carnegie tentatively agreed to donate $5.2 million (equivalent of $201 million in 2025) to construct sixty-five branch libraries in the city, with the requirement that they be operated and maintained by the City of New York. The Brooklyn and Queens public library systems, which predated the consolidation of New York City, eschewed the grants offered to them and did not join the NYPL system; they believed that they would not get treatment equal to the Manhattan and the Bronx counterparts.
Later, in 1901, Carnegie formally signed a contract with the City of New York to transfer his donation to the city in order to enable it to justify purchasing the land for building the branch libraries. The NYPL Board of trustees hired consultants for the planning, and accepted their recommendation that a limited number of architectural firms be hired to build the Carnegie libraries; this would ensure uniformity of appearance and minimize cost. The trustees hired McKim, Mead & White, Carrère and Hastings, and Walter Cook to design all the branch libraries.
New York author Washington Irving was a close friend of Astor's for decades and had helped the philanthropist design the Astor Library. Irving served as President of the library's Board of Trustees from 1848 until his death in 1859, shaping the library's collecting policies with his strong sensibility regarding European intellectual life. Subsequently, the library hired nationally prominent experts to guide its collections policies; they reported directly to directors John Shaw Billings (who also developed the National Library of Medicine), Edwin H. Anderson, Harry M. Lydenberg, Franklin F. Hopper, Ralph A. Beals, and Edward Freehafer (1954–1970). They emphasized expertise, objectivity, and a very broad worldwide range of knowledge in acquiring, preserving, organizing, and making available to the general population nearly 12 million books and 26.5 million additional items. The directors in turn reported to an elite board of trustees, chiefly elderly, well-educated, philanthropic, predominantly Protestant, upper-class white men with commanding positions in American society. They saw their role as protecting the library's autonomy from politicians as well as bestowing upon it status, resources, and prudent care.
In 1920, Catherine Allen Latimer became the system's first African-American librarian.
Representative of many major board decisions was the purchase in 1931 of the private library of Grand Duke Vladimir Alexandrovich (1847–1909), uncle of the last tsar. This was one of the largest acquisitions of Russian books and photographic materials; at the time, the Soviet government had a policy of selling its cultural collections abroad for gold. Related collections include a significant number of important works by Russian photographers, and photographs related to the House of Romanov and Russia expert George Kennan.
The military drew extensively from the library's map and book collections in the world wars, including hiring its staff. For example, the Map Division's chief Walter Ristow was appointed as head of the geography section of the War Department's New York Office of Military Intelligence from 1942 to 1945. Ristow and his staff discovered, copied, and loaned thousands of strategic, rare or unique maps to war agencies in need of information not available through other sources.
The organizers of the New York Public Library, wanting an imposing main branch, chose a central site along Fifth Avenue between 40th and 42nd Streets, on top of the Croton Reservoir. John Shaw Billings, the first director of the library, created an initial design that became the basis of the new building containing a huge reading room on top of seven floors of book stacks, combined with a system that was designed to get books into the hands of library users as fast as possible. The architectural firm Carrère and Hastings constructed the structure in the Beaux-Arts style, and the structure opened on May 23, 1911. It was the largest marble structure up to that time in the United States.