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Librarians are not shushing people, and libraries are no longer only silent cathedrals for solo reading. (They still have reading rooms—don’t worry.) Instead, these great pieces of civic architecture are being repurposed: They’re places that offer classes in computer skills and thousands of other subjects, provide internet access to millions of Americans who can’t afford it, and host innumerable neighborhood meetings.

Libraries these days are providing meals to kids and adults through local food banks, working with local immigrant agencies, offering homework help, and loaning out an amazing array of things, from musical instruments to microscopes. (Yes: the Library of Things.) What they’re up to is dazzling. And in 2013, 94 percent of Americans said that having a public library improves the quality of life in a community. As America gets older and more unequal, its people need new forms of education to thrive—and libraries are ground zero for every public value the country cares about.

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