Patricia D. Klingenstein Library

One of the oldest, most distinguished libraries in the nation, New-York Historical's Patricia D. Klingenstein Library holds millions of books, newspapers, maps, manuscript and archival collections, prints, photographs, and architectural collections. It is a vital center of research into the history of New York and the nation.

Library Hours

  • Research operations at the Library are on hold through Tuesday, February 1.
  • More details on our Visit page below.

    Research Tools

    Online Catalog

    The majority of the Library's collections have been processed and catalogued, and may be found by searching the online catalog.

    Visit Online Catalog

    Finding Aids

    Browse details about the manuscript and graphic collections and search through a full-text searchable database.

    Search the Finding Aids
    Browse Manuscript Finding Aids
    Browse Graphic Finding Aids

    Reference Request

    Need reference assistance? Please email us at with your question. A librarian will answer your email in 2-4 weeks.

    On-Site Resources

    In addition to our online resources, research tools are available in our Library's reading room.

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    Treasures of the Patricia D. Klingenstein Library

    Browse a curated online selection of some of the Library's most prized drawings, documents, letters, and more.

    Explore the Library's treasures


    New-York Historical’s fellowships provide scholars with deep resources and an intellectual community to develop new research and publications. We're now accepting applications for the 2022–2023 academic year.

    Learn more