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How do museums differ from libraries in the materials they preserve?

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Gallery room at the National Gallery of Art in Washington, DC, with framed portraits and group paintings on the walls and a bench in the center of the wood floor. — museum Interior of the National Gallery of Art, Washington, D.C.

Museums and libraries are both vital cultural institutions, but they differ significantly in the nature of the materials they preserve and their primary function.

A museum is dedicated to preserving and interpreting primary, tangible evidence of humankind and the environment. The items housed in a museum are typically unique, serving as the raw material for research and study. Because these objects are often removed from their original context, they communicate directly to the viewer in a way that other media cannot.1

In contrast, libraries primarily collect and preserve recorded knowledge, such as books, manuscripts, and other documents, to facilitate learning and the transmission of intellectual heritage. While libraries may hold rare items like manuscripts or incunabula, their collections are often focused on the information contained within the materials rather than the unique, physical nature of the objects themselves.234

Ultimately, while museums prioritize the preservation of unique material artifacts to provide a direct connection to the past, libraries focus on the accessibility and preservation of recorded information to support ongoing education and historical continuity.134